state whether the data is discrete or continuous

C. This data is so important for us that it becomes important to handle and store it properly, without any error. These types of data are sorted by category, not by number. air. However, generally, we use age as a discrete, NCERT Solutions for Class 12 Business Studies, NCERT Solutions for Class 11 Business Studies, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 9 Social Science, NCERT Solutions for Class 8 Social Science, CBSE Previous Year Question Papers Class 12, CBSE Previous Year Question Papers Class 10. A. It is classified into two broad categories: qualitative data and quantitative data. Save my name, email, and website in this browser for the next time I comment. Press ENTER. If the survey is done well, the answer is yes. A pie chart cannot be used. A type of sampling that is non-random is convenience sampling. They both did. The type of data that has clear spaces between values is discrete data. The term discrete means distinct or separate. The number of classes a student missed. So is the case of statistics too. 2. Data are individual items of information that come from a population or sample. When you have a numeric variable, you need to determine whether it is discrete or continuous. This page titled 1.2: Variables and Types of Data is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by OpenStax via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request. In some situations, having small samples is unavoidable and can still be used to draw conclusions. The data are discrete because the data can . Any group of n individuals is equally likely to be chosen by any other group of n individuals if the simple random sampling technique is used. Work more on basics as they form the basis for many other concepts. For column 1, Press 5:randInt( and enter 1,10). The data are continuous because the data can take on any value in an interval. Sampling without replacement instead of sampling with replacement becomes a mathematical issue only when the population is small. Legal. Three cell phone towers form APQR. The total number of students in a class is an example of discrete data. The Pareto chart has the bars sorted from largest to smallest and is easier to read and interpret. B.The data are discrete because the data can only take on specific values. The prison populations of different countries ha Choose the correct answer below. Because students can complete only a whole number of hours (no fractions of hours allowed), this data is quantitative discrete. Other well-known random sampling methods are the stratified sample, the cluster sample, and the systematic sample. b. Continuous data is the data that can be of any value. Required fields are marked *. Results are the outcome of our efforts and if you believe that you have put your best, then you will surely be able to score good marks. and it is subdivided into nominal and ordinal data. The examples you have seen in this book so far have been small. Statistics and Probability questions and answers, CS State whether the data described below are discrete or continuous, and explain why. b. Nominal and ordinal data can act as both discrete and continuous. Step 2: Discrete and continuous data. The key difference between discrete and continuous data is that discrete data contains the integer or whole number. 2013. Self-selected samples: Responses only by people who choose to respond, such as call-in surveys, are often unreliable. A. Question: CS State whether the data described below are discrete or continuous, and explain why. The numbers of books (three, four, two, and one) are the quantitative discrete data. Create a cluster sample by considering each state as a stratum (group). Divide into groups of two, three, or four. Indicate whether quantitative data are continuous or discrete. 134.209.154.177 Doreen's sample will be different from Jung's sample. where n is the number of tips in the phylogeny ( ) , P is the continuous trait value of each species, and Q is the expected value of each species given the continuous trait model calculated following Equation (11) of Beaulieu et al. Thats why it is also known as Categorical Data. y's house is at D, 750 feet from the intersection. What are the career options in the field of Statistics? All you can do right now is to just take a deep breath and believe in yourself! The exact distances (in centimeters) between the chairs in a college classroom. Collaborative Exercise 1.2. O A. ), Education Level (Higher, Secondary, Primary), Total numbers of students present in a class, The total number of players who participated in a competition. First, we use convenience sampling and survey ten students from a first term organic chemistry class. A student interviews classmates in his algebra class to determine how many pairs of jeans a student owns, on the average. B. A. A variable is said to be continuous if it can take on any value in an interval. These data consist of audio, images, symbols, or text. Can I get some help? Read the study carefully to evaluate the work. This section will describe a few of the most common methods. Divide 84 a money box contains 1 coins, 2 coins, 5 coins and 10 coins 10 coins is four times the number of 1 coins. Variation is present in any set of data. a chemical reaction comma repeated several times Choose the correct Then survey every U.S. congressman in the cluster. Log on to our website and explore courses delivered by industry experts. The use of discrete and continuous quantitative variables would be helpful for detecting intervention effects . The amount a person grew (in height) in a year. The data are the number of machines in a gym. The station wants to know if its audience would prefer more music or more talk shows. Each student in the following samples is asked how much tuition he or she paid for the Fall semester. The data are the colors of houses. Finite values have discrete data. So, you will get the result too! Two positions of an open gate are shown. The volumes left parenthesis in cubic feet right parenthesis of different rooms Choose the correct answer below. The data are continuous because the data can take We provide you year-long structured coaching classes for CBSE and ICSE Board & JEE and NEET entrance exam preparation at affordable tuition fees, with an exclusive session for clearing doubts, ensuring that neither you nor the topics remain unattended. This is completely natural. A sample should have the same characteristics as the population it is representing. Ungrouped frequency distribution of discrete data is performed against a single value. For the purpose of analysis, data are presented as the facts and figures collected together. 4. Note: randInt(0, 30, 3) will generate 3 random numbers. You sample five gyms. It can be the version of an android phone, the height of a person, the length of an object, etc. Your instructor will give each group one six-sided die. The measure of ZQ is 10 less than the measure of LP. Surveys mailed to households and then returned may be very biased (they may favor a certain group). You have to be dedicated. Conduct the survey by sitting in Central Park on a bench and interviewing every person who sits next to you. A high school counselor uses a computer to generate 50 random numbers and then picks students whose names correspond to the numbers. Over time, some continuous data can change. Suppose we take two different samples. You can go for a business analyst or a statistician or a financial analyst or even an economist etc. The chart in Figure $\PageIndex{6}$ is organized by the size of each wedge, which makes it a more visually informative graph than the unsorted, alphabetical graph in Figure $\PageIndex{6}$. This pie chart shows the students in each year, which is qualitative data. Discrete data. For the purpose of analysis, data are presented as the facts and figures collected together. The data are because.continuous the data can take on any value in an interval B. The sample probably consists more of people who prefer music because it is a concert event. Explain your reasoning. 1. Which is the safest route for the ship? To find the average GPA of all students in a university, use all honor students at the university as the sample. For instance, hair color might be black, dark brown, light brown, blonde, gray, or red. The random numbers 0.94360 and 0.99832 do not contain appropriate two digit numbers. Record the number. amount of money (in dollars) won playing poker, IQ scores (This may cause some discussion.). For example, suppose Lisa wants to form a four-person study group (herself and three other people) from her pre-calculus class, which has 31 members not including Lisa. The size of a sample (often called the number of observations) is important. Discrete Data Examples: The number of students in a class, the number of chocolates in a bag, the number of strings on the guitar, the number of fishes in the aquarium, etc. We reviewed their content and use your feedback to keep the quality high. The data are the number of books students carry in their backpacks. Discrete. D. The Arrow over to PRB. If you feel tired at the moment, even that too is fine. Here are a few steps to prepare well for your exam which has statistics as a part of the course. feet. The quiz scores (20 of them) in these 2 columns are the cluster sample. Numeric variables represent characteristics that you can express as numbers rather than descriptive language. Its really normal for you to feel anxious before your exam especially when the subject is statistics. These kinds of data are also known as Numerical data. Your email address will not be published. state whether the data is continous or discrete The durations of State whether the data described below are discrete or continuous and explain why The amounts of time that different brands' batteries last in a CD player. To choose a simple random sample from each department, number each member of the first department, number each member of the second department, and do the same for the remaining departments. B. Press ENTER two more times for the other 2 random numbers. categorical, quantitative discrete or quantitative continuous. You'll find career guides, tech tutorials and industry news to keep yourself updated with the fast-changing world of tech and business. No. The students spend the following amounts: $180; $50; $150; $85; $260; $75; $180; $200; $200; $150. the number of data values is increased), their sample results (the average amount of time a student sleeps) might be closer to the actual population average. Age is discrete data because we could be infinitely precise and use an infinite number of decimal places, rendering age continuous as a result. The color of hair can be considered nominal data, as one color cant be compared with another color. The station uses convenience sampling and surveys the first 200 people they meet at one of the stations music concert events. The safest route is to avoid the closest pair of islands. For example, you could stratify (group) your college population by department and then choose a proportionate simple random sample from each stratum (each department) to get a stratified random sample. 2003-2023 Chegg Inc. All rights reserved. state whether the data is continous or discrete The durations of a chemical reaction comma repeated several times Choose the correct answer below. CS State whether the data described below are discrete or continuous, and explain why. Try to identify additional data sets in this example. and the Michigan State University Institutional Animal Care and Use Committee prior to the start of data collection. The Data and Story Library, lib.stat.cmu.edu/DASL/Datafiles/USCrime.html (accessed May 1, 2013). If you and your friends carry backpacks with books in them to school, the numbers of books in the backpacks are discrete data and the weights of the backpacks are continuous data. a. Determine the correct data type (quantitative or qualitative) for the number of cars in a parking lot. Ans: Ducks in a pond are discrete data because the number of ducks is a finite number. The data are continuous because the data can take A. Which pair is farther from camp? The discrete data are countable and have finite values; their subdivision is not possible. They spend: $50; $40; $36; $15; $50; $100; $40; $53; $22; $22. Evaluate it on its merits and the work done. What is the main difference between discrete and continuous data? Difference Between Continuous and Discrete Data, Questions on Discrete Data Continuous Data. . You can go for many of the career options if you pursue stats, you can get detailed information about all of the above-mentioned choices and also many more careers on the online website of Vedantu which tells the full forms and also the detailed explanation of each one of them. Most statisticians use various methods of random sampling in an attempt to achieve this goal. Quantitative data may be either discrete or continuous. The data are discrete because the data can only take on specific values. C. Ra a. This category contains people who did not feel they fit into any of the ethnicity categories or declined to respond. The second sample is taken using a list of senior citizens who take P.E. Two students carry three books, one student carries four books, one student carries two books, and one student carries one book. Question: State whether the data described below are discrete or continuous, and explain why. Q: Classify the Following as Discrete and Continuous Data. Manufacturers regularly run tests to determine if the amount of beverage in a 16-ounce can falls within the desired range. Q: State whether the data below are discrete or continuous, explain why. The numbers of hotels in cities Choose the correct answer below. The numbers of hotels in cities Choose the correct answer below. Work collaboratively to determine the correct data type (quantitative or qualitative). A. All data that are the result of counting are called quantitative discrete data. Just as there is variation in data, there is variation in samples. Instead, we use a sample of the population. Statistics is a quite tough subject but for those who know how to use their mind, its the best one for them as it involves more practical knowledge and conceptual learning. And this is the reason why most students find it to be an interesting subject. Create a systematic sample of 12 quiz scores. four children shared a two third liter bottle of drink equal.how much did each child drink , two pairs of hikers leave the same camp heading in opposite divections. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. If you feel like your doubt is stupid and you skip it rather than ask it, it is not the correct approach. Larger samples are better, if possible. Press ENTER 2 more times (even the repeats). Be aware that many large samples are biased. The data are discrete because the data can take on any value in an interval. The discrete data contain the values that fall under integers or whole numbers. Create a cluster sample by picking two of the columns. Compare the fractions 9/25 and 9/24. Data may come from a population or from a sample. However, if two or more of you are taking the same data and get very different results, it is time for you and the others to reevaluate your data-taking methods and your accuracy. Quantitative data can be expressed in numerical values, making it countable and including statistical data analysis. Surveys are typically done without replacement. Suppose Doreen and Jung both decide to study the average amount of time students at their college sleep each night. Qualitative data tells about the perception of people. 1: 23-54 (2012), ssh.dukejournals.org/content/36/1/23.abstract (accessed May 1, 2013). Books for these classes tend to be expensive. Ordinal data have natural ordering where a number is present in some kind of order by their position on the scale. It only contains finite values, the subdivision of which is not possible. Think about what contributes to making Doreens and Jungs samples different. Systematic sampling is frequently chosen because it is a simple method. A local radio station has a fan base of 20,000 listeners. Continuous data are in the form of fractional numbers. You measure continuous data. C. The data are The data will be quantitative, say 2+3 (=5) apples. The duration of movies in minutes A.The data are continuous because the data can take on any value in an interval. It was mentioned previously that two or more samples from the same population, taken randomly, and having close to the same characteristics of the population will likely be different from each other. The land areas of different countries Choose the correct answer below. Ordinal data is qualitative data for which their values have some kind of relative position. Even if Doreen and Jung used the same sampling method, in all likelihood their samples would be different. Your IP: Weights are quantitative continuous data because weights are measured. It is classified into two broad categories: qualitative data and quantitative data. One-third of a number when decreased by 2 equals one-fifth of the nimenbe Find the number. These kinds of data can be considered in-between qualitative and quantitative data. Notice how much larger the percentage for part-time students at Foothill College is compared to De Anza College. For this example, suppose Lisa chooses to generate random numbers from a calculator. One student has a red backpack, two students have black backpacks, one student has a green backpack, and one student has a gray backpack. A defective counting device can cause a nonsampling error. Examples of discrete variables are the number of students and age. . If quantitative, state whether it's discrete or continuous. To four decimal places, 9/25 = 0.3600 and 9/24 = 0.3750. For example, if the population is 25 people, the sample is ten, and you are sampling with replacement for any particular sample, then the chance of picking the first person is ten out of 25, and the chance of picking a different second person is nine out of 25 (you replace the first person). As you become accustomed to sampling, the variability will begin to seem natural. Record these numbers. These values do not have to be complete numbers, but they are values that are fixed. Instructions: Use the Random Number Generator to pick samples. If these data-driven topics got you interested in pursuing professional courses or a career in the field of Data Science. Hint: Data that are discrete often start with the words "the number of." the number of pairs of shoes you own. Quantitative data, on the other hand, is one that contains numerical values and uses a scope. You can specify conditions of storing and accessing cookies in your browser. Experts are tested by Chegg as specialists in their subject area. It is further classified as discrete data and continuous data. A stated earlier, Lengths are in general, continuous variables. These 18 quiz scores are a stratified sample. Still, continuous data stores the fractional numbers to record different types of data such as temperature, height, width, time, speed, etc. O A. Convenience sampling involves using results that are readily available. Record the quiz scores that correspond to these numbers. For the purpose of analysis, data are presented as the facts and figures collected together. If you're asked whether age is a continuous or discrete variable in an Introductory Statistics class, the correct answer is technically continuous. Once you are clear with the basic concept, you shall be able to understand additional concepts easily. Rational Numbers Between Two Rational Numbers, XXXVII Roman Numeral - Conversion, Rules, Uses, and FAQs, Find Best Teacher for Online Tuition on Vedantu. Create a simple random sample of 15 quiz scores. A.The data are continuous because the data can only take on the data can only take on specificvalues. The data are because.continuous the data can only take on specific values C. The numbers of majors offered by colleges Choose the correct answer below. The data are continuous because the data can only take on specific values. This table displays six sets of quiz scores (each quiz counts 10 points) for an elementary statistics class. discrete because the data can only take on specific values . the number of classes you take per school year. Nominal Data is used to label variables without any order or quantitative value. In this situation, create a bar graph and not a pie chart. Most samples are taken from large populations and the sample tends to be small in comparison to the population. The result of the rolling is a dice is 1, 2, 3, 4, 5, 6, 7, and 8. Quantitative data can be used for statistical manipulation. OD. feet, and 210 sq. You can also visit their website. The second sample is a group of senior citizens who are, more than likely, taking courses for health and interest. 10. Ordinal data have natural ordering where a number is present in some kind of order by their position on the scale. Both samples are biased. It is also important to know what kind of plot is suitable for which data category; it helps in data analysis and visualization. Try this experiment twice. As a class, determine whether or not the following samples are representative. When a car is randomly selected, it is found to have 3 wipers. It may take any numeric value, within a potential value range of finite or infinite. These data take on only certain numerical values. In the graph, the percentages add to more than 100% because students can be in more than one category. For any particular sample of 1,000, if you are sampling with replacement. You will learn why when you study confidence intervals. This site is using cookies under cookie policy . In a college population of 10,000 people, suppose you want to pick a sample of 1,000 randomly for a survey. You should ask the doubt there and then clear it, analyze it and work on it. Continuous Data Examples: Measurement of height and weight of a student, Daily temperature measurement of a place, Wind speed measured daily, etc. Position 1 is less than the distance from G to H in Position 2. In reality, a sample will never be exactly representative of the population so there will always be some sampling error. The data are discrete because the data can only take on specific values. data are discrete because the data can take on any value in an Discrete data is data that can only take certain values, while data that can take any value is continuous data. For example, a computer software store conducts a marketing study by interviewing potential customers who happen to be in the store browsing through the available software. What can you conclude about the angles opposite these sides? You should know how to manage your time and utilize it in the best way possible. There are particular calculators for different statistics exams and having good knowledge about their use and implementation would be great. This variability in samples cannot be stressed enough. A pollster interviews all human resource personnel in five different high tech companies. It might sound a bit weird but do not burden yourself with new topics before the exam. According to a report, today, at least2.5 quintillion bytes of data are produced per day. The numbers of countries in the world in different years Choose the correct answer below. Otherwise, the variable is nominal. Press 5:randInt( and enter 1,6). B. Number each department, and then choose four different numbers using simple random sampling. That is, once a member is picked, that member goes back into the population and thus may be chosen more than once. B. 1. O A. O A. You can email the site owner to let them know you were blocked. (2012), D is the discrete character data, z is a particular character mapping, and are the parameters of the hOUwie model.