It is further classified as discrete data and continuous data. For the purpose of analysis, data are presented as the facts and figures collected together. The departments are the clusters. Also, the sample represents only those who showed up to the event earlier than the majority. The quiz scores (20 of them) in these 2 columns are the cluster sample. Points in a graph of the discrete function remain unconnected. O A. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Ordinal data is qualitative data for which their values have some kind of relative position. Show Less. State whether the data described below are discrete or continuous, and explain why. There are many different potential problems that can affect the reliability of a sample. Great Learning's Blog covers the latest developments and innovations in technology that can be leveraged to build rewarding careers. the type of car you drive. One student has a red backpack, two students have black backpacks, one student has a green backpack, and one student has a gray backpack. Displaying percentages along with the numbers is often helpful, but it is particularly important when comparing sets of data that do not have the same totals, such as the total enrollments for both colleges in this example. Sleep deprivation is of no use, instead, you should take a nap to relax the nerves of your brain in order to learn and study later. Roll one fair die (six-sided) 20 times. These data are represented mainly by a bar graph, number line, or frequency table. Because students can complete only a whole number of hours (no fractions of hours allowed), this data is quantitative discrete. The name nominal comes from the Latin name nomen, which means name. With the help of nominal data, we cant do any numerical tasks or cant give any order to sort the data. Indicate whether quantitative data are continuous or discrete. Neither would be wrong, however. The numbers generated are as follows: 0.94360; 0.99832; 0.14669; 0.51470; 0.40581; 0.73381; 0.04399. The areas of the lawns are 144 sq. You measure continuous data. Press 5:randInt( and enter 1, 60). Excelling your basic knowledge about the subject promotes conceptual learning and hence, you can easily get familiar with new concepts too. Use the column numbers: one through six. The data are discrete because the data can only take on specific values. Arrow over to PRB. Answered: State whether the data described below | bartleby Math 227 - Statistics Flashcards | Quizlet We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Many other courses are available online to master your foundational knowledge which may assist you later. A random number generator is used to pick two of those years. The data are continuous because the data can take on any value in an interval. The data are continuous because the data can only take on specific values . The use of discrete and continuous quantitative variables would be helpful for detecting intervention effects . The data are because.continuous the data can take on any value in an interval B. State whether the data described below are discrete or continuous, and explain why. The exact lengths (in kilometers) of the ocean coastlines of different countries. We might make different choices of what we think is the best graph depending on the data and the context. Each student is chosen using simple random sampling. Blood type might be AB+, O-, or B+. All members of the four departments with those numbers are the cluster sample. The data are discrete because the data can only take on specific values. QUESTIONState whether the data described below are discrete or continuous, and explain why. a. stratified; b. systematic; c. simple random; d. cluster; e. convenience. It only contains finite values, the subdivision of which is not possible. For example, you can not have a natural order for apple, orange, and banana. the chance of picking the first person is 1,000 out of 10,000 (0.1000); the chance of picking a different second person for this sample is 999 out of 10,000 (0.0999); the chance of picking the same person again is 1 out of 10,000 (very low). B. You may wrap around (go back to the beginning). Can I get some help? b. Besides herself, Lisas group will consist of Marcierz, Cuningham, and Cuarismo. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. A more technological way is for Lisa to first list the last names of the members of her class together with a two-digit number, as in Table \(\PageIndex{2}\): Lisa can use a table of random numbers (found in many statistics books and mathematical handbooks), a calculator, or a computer to generate random numbers. Determine whether the data are from discrete data or continuous data set. 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. 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. The safest route is to avoid the closest pair of islands. Just as there is variation in data, there is variation in samples. Keep counting ten quiz scores and recording the quiz score until you have a sample of 12 quiz scores. Vedantu LIVE Online Master Classes is an incredibly personalized tutoring platform for you, while you are staying at your home. Number the population 120,000 and then use a simple random sample to pick a number that represents the first name in the sample. The prison populations of different countries ha Choose the correct answer below. What can you conclude about the angles opposite these sides? air. For example, in the case of statistics, algebra is a good option to learn before starting your statistics course. If you count the number of phone calls you receive for each day of the week, you might get values such as zero, one, two, or three. By using simple random sampling, select states to be part of the cluster. Q: Classify the Following as Discrete and Continuous Data. the distance it is from your home to the nearest grocery store. If you did the experiment a third time, do you expect the results to be identical to the first or second experiment? Therefore this is discrete data. Discrete and Continuous Data - Definitions, Examples - VEDANTU It only contains finite values, the subdivision of which is not possible. Statistics and Probability questions and answers, CS State whether the data described below are discrete or continuous, and explain why. They spend: $50; $40; $36; $15; $50; $100; $40; $53; $22; $22. MAT 131 - Descriptive Statistics Ch. 1.2 - Types of Data - Quizlet When properly selected, larger samples model the population more closely than smaller samples. Doreen's sample will be different from Jung's sample. The bar graph is used to graphically represent discrete data. Solved State whether the data described below are discrete - Chegg categorical, quantitative discrete or quantitative continuous. The measure of Ris 5 greater than the measure of ZO. As a class, determine whether or not the following samples are representative. Ungrouped frequency distribution of discrete data is performed against a single value. Measuring angles in radians might result in such numbers as \(\frac{\pi}{6}\), \(\frac{\pi}{3}\), \(\frac{\pi}{2}\), \(\pi\), \(\frac{3\pi}{4}\), and so on. There are no strict rules concerning which graphs to use. Data that can only take on certain values are discrete data. What type of data is this? It helps you in saving time later as you already have some knowledge about algebra. Data may come from a population or from a sample. A. The data are discrete because the data can take on any value in an interval. A pollster interviews all human resource personnel in five different high tech companies. Hint: Data that are discrete often start with the words "the number of." the number of pairs of shoes you own. 8. In this article, we have discussed the data types and their differences. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Surveys mailed to households and then returned may be very biased (they may favor a certain group). The numbers of hotels in cities Choose the correct answer below. Try to identify additional data sets in this example. The data are the number of books students carry in their backpacks. The volume of cola in a can is 11.8 oz. The Literary Digest Poll, Virtual Laboratories in Probability and Statistics, Gallup Presidential Election Trial-Heat Trends, 19362008, Gallup Politics. True random sampling is done with replacement. According to a report, today, at least2.5 quintillion bytes of data are produced per day. Discrete. 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. You should know how to manage your time and utilize it in the best way possible. The measure of ZQ is 10 less than the measure of LP. Biased samples that are not representative of the population give results that are inaccurate and not valid. 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. Each random number may only contribute one class member. The height of a student from age 5-15 is continuous data because the height varies continuously from age 5-15 which is not a constant for 10 years. Get Into Data Science From Non IT Background, Data Science Solving Real Business Problems, Understanding Distributions in Statistics, Major Misconceptions About a Career in Business Analytics, Business Analytics and Business Intelligence Possible Career Paths for Analytics Professionals, Difference Between Business Intelligence and Business Analytics. However, in the real world age is often treated as a discrete variable because it makes more sense when collecting data and when reporting the results of a study. Think about what contributes to making Doreens and Jungs samples different. a chemical reaction comma repeated several times Choose the correct Once you are clear with the basic concept, you shall be able to understand additional concepts easily. Click to reveal O C. The data are continuous because the data can take on any value in an interval. The number of books in a rack is a finite countable number. The class boundaries are 10 to less than 13, 13 to less than 16, 16 to less than 19, 19 to less than 22, and 22 to less than 25. Besides simple random sampling, there are other forms of sampling that involve a chance process for getting the sample. This particular bar graph in Figure \(\PageIndex{4}\) can be difficult to understand visually. The data are continuous because the data can take on any value in an interval . Divide into groups of two, three, or four. 1: 23-54 (2012), ssh.dukejournals.org/content/36/1/23.abstract (accessed May 1, 2013). Tables are a good way of organizing and displaying data. Most of these students are, more than likely, paying more than the average part-time student for their books. Do you think that this sample is representative of (or is characteristic of) the entire 20,000 listener population? Often, people with strong positive or negative opinions may answer surveys, which can affect the results. Determine whether the value is from a discrete or continuous It is from a discrete data set because the number of possible values is infinite and countable. 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 weights (in pounds) of their backpacks are 6.2, 7, 6.8, 9.1, 4.3. The tables display counts (frequencies) and percentages or proportions (relative frequencies). A histogram is used to display quantitative data: the numbers of credit hours completed. The ordinal data only shows the sequences and cannot use for statistical analysis. The data are continuous because the data can only take on specific values. Asking all 10,000 students is an almost impossible task. Just know that you have prepared and worked hard for this. . Suppose ABC College has 10,000 part-time students (the population). The data are discrete because the data can only take on specific values. The discrete data are countable and have finite values; their subdivision is not possible. State whether the data described below are discrete - Course Hero If there is a repeat press ENTER again. c. The data are continuous because the data can take on any value in an interval. Many of these students are taking first term calculus in addition to the organic chemistry class. The continuous data can be broken down into fractions and decimals, i.e. Doreen uses systematic sampling and Jung uses cluster sampling. We may prefer not to think of 10,00,100 and 10,00,102 as crucially different values, but instead as nearby points on an approximate continuum. Quantitative data are always numbers. Instead of that, just revise what youve already done. From that number, count ten quiz scores and record that quiz score. You can go for a business analyst or a statistician or a financial analyst or even an economist etc. B. When a car is randomly selected, it is found to have 3 wipers. Gathering information about an entire population often costs too much or is virtually impossible. A. pair starts due east and then turns 50 toward north. Finite values have discrete data. Most statisticians use various methods of random sampling in an attempt to achieve this goal. Question: CS State whether the data described below are discrete or continuous, and explain why. The Other/Unknown category is large compared to some of the other categories (Native American, 0.6%, Pacific Islander 1.0%). These kinds of data are also known as Numerical data. It is classified into two broad categories: qualitative data and quantitative data. The data are continuous because the data can take on any value in an interval. When a sampling bias happens, there can be incorrect conclusions drawn about the population that is being studied. a. Sample size issues: Samples that are too small may be unreliable. The option "B" is correct i.e. Question: State whether the data described below are discrete or continuous, and explain why. And this is the reason why most students find it to be an interesting subject. State whether the data described below are discrete or continuous, and Legal. ), Education Level (Higher, Secondary, Primary), Total numbers of students present in a class, The total number of players who participated in a competition. Ducks in a pond are discrete data because the number of ducks is a finite number. This website is using a security service to protect itself from online attacks. The data are because.continuous the data can only take on specific values C. These types of data are sorted by category, not by number. (a) Is the data discrete or continuous? Why? (b) Prepare a freq | Filo The data will be quantitative, say 2+3 (=5) apples. The size of a sample (often called the number of observations) is important. Each method has pros and cons. You can get study material, solved and unsolved questions, and also quizzes which will help you test your knowledge. In this situation, create a bar graph and not a pie chart. Working on data is crucial because we need to figure out what kind of data it is and how to use it to get valuable output out of it. Learn data analytics or software development & get guaranteed* placement opportunities. This table displays six sets of quiz scores (each quiz counts 10 points) for an elementary statistics class. Experts are tested by Chegg as specialists in their subject area. If we have quantitative data, such as the correct number of questions on a test, then the data can be continuous or discrete. This data helps a company analyze its business, design its strategies, and help build a successful data-driven decision-making process. Is the study impartial? 1.2: Variables and Types of Data - Statistics LibreTexts Each student in the following samples is asked how much tuition he or she paid for the Fall semester. State whether the data described below are discrete or - JustAnswer It is not possible to measure qualitative data in terms of. B. Solved CS State whether the data described below are - Chegg The data are discrete because the data can only take on specific values. The key difference between discrete and continuous data is that discrete data contains the integer or whole number. The data are discrete because the data can only take on specific . The colors red, black, black, green, and gray are qualitative data. 26. O A. The data . Data is the new oil. Today data is everywhere in every field. 25. 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. A.The data are continuous because the data can only take on the data can only take on specificvalues. Grouped distribution of continuous data tabulation frequencies is performed against a value group. No. If you're asked whether age is a continuous or discrete variable in an Introductory Statistics class, the correct answer is technically continuous.
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