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Determine whether the data described below are qualitative or quantitative and explain why: . 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. So is the case of statistics too. These data cant be broken into decimal or fraction values. Continuous data are in the form of fractional numbers. All data that are the result of measuring are quantitative continuous data assuming that we can measure accurately. A medical researcher interviews every third cancer patient from a list of cancer patients at a local hospital. Try to identify additional data sets in this example. The data are continuous because the data can only take on specific values. The data are the number of machines in a gym. Is Age a Discrete or Continuous Variable? - Statology Qualitative or Quantitative? Discrete or Continuous? | Ching-Chi Yang A high school educational researcher interviews 50 high school female teachers and 50 high school male teachers. B. Quantitative data, on the other hand, is one that contains numerical values and uses a scope. Amount of money, pulse rate, weight, number of people living in your town, and number of students who take statistics are examples of quantitative data. The first We have grown leaps and bounds to be the best Online Tuition Website in India with immensely talented Vedantu Master Teachers, from the most reputed institutions. The discrete data are countable and have finite values; their subdivision is not possible. The numbers of programs installed on various computers ANSWERA.) The Other/Unknown category is large compared to some of the other categories (Native American, 0.6%, Pacific Islander 1.0%). Be aware that many large samples are biased. state whether the data is continous or discrete The durations of (a) Is the data discrete or continuous? Why? (b) Prepare a freq | Filo For the purpose of analysis, data are presented as the facts and figures collected together. Number of bacteria in a petri dish is 12,120. State whether the data described below are discrete or continuous, and Collecting data carelessly can have devastating results. Use the column numbers: one through six. You may wrap around (go back to the beginning). Doreen uses systematic sampling and Jung uses cluster sampling. You cannot expect your brain to work nicely with hundreds of thoughts, it will only create a mess. Starting with that student, every 50th student is chosen until 75 students are included in the sample. Most samples are taken from large populations and the sample tends to be small in comparison to the population. Discrete. Discrete vs continuous data are two broad categories of numeric variables. We need to evaluate the statistical studies we read about critically and analyze them before accepting the results of the studies. The exact distances (in centimeters) between the chairs in a college classroom. OB. A discrete variable, on the other hand, can only take on specific values. We are interested in the average amount of money a part-time student spends on books in the fall term. If we have quantitative data, such as the correct number of questions on a test, then the data can be continuous or discrete. You have to be dedicated. Data are individual items of information that come from a population or sample. B. The term discrete means distinct or separate. Record the number. If you feel tired at the moment, even that too is fine. Besides the chemistry course, some of them are also taking first-term calculus. 2003-2023 Chegg Inc. All rights reserved. Divide your college faculty by department. You should ask the doubt there and then clear it, analyze it and work on it. The numbers of books (three, four, two, and one) are the quantitative discrete data. on any value in an interval . Arrow over to PRB. Every value within a range is included in continuous data. Record the number and the first quiz score. It only contains finite values, the subdivision of which is not possible. the data can only take on specific values . On your calculator, press Math and arrow over to PRB. Which is the safest route for the ship? . It is classified into two broad categories: qualitative data and quantitative data. A sample of 100 undergraduate San Jose State students is taken by organizing the students names by classification (freshman, sophomore, junior, or senior), and then selecting 25 students from each. One-third of a number when decreased by 2 equals one-fifth of the nimenbe Find the number. The data she collects are summarized in the pie chart Figure \(\PageIndex{1}\). 134.209.154.177 Instead of that, just revise what youve already done. When properly selected, larger samples model the population more closely than smaller samples. Once you are clear with the basic concept, you shall be able to understand additional concepts easily. For example, if you randomly sample four departments from your college population, the four departments make up the cluster sample. But still, their samples would be, in all likelihood, different from each other. A variable is said to be continuous if it can take on any value in an interval. The sample probably doesnt represent the entire fan base and is probably biased towards people who would prefer music. y's house is at D, 750 feet from the intersection. This particular bar graph in Figure \(\PageIndex{4}\) can be difficult to understand visually. the type of car you drive. Then survey every U.S. congressman in the cluster. Work more on basics as they form the basis for many other concepts. Quantitative data can be used for statistical manipulation. The sample probably consists more of people who prefer music because it is a concert event. When a car is randomly selected, it is found to have 3 wipers. This data helps a company analyze its business, design its strategies, and help build a successful data-driven decision-making process. Two positions of an open gate are shown. Position 1 is less than the distance from G to H in Position 2. Math 227 - Statistics Flashcards | Quizlet Question: State whether the data described below are discrete or continuous, and explain why. You sample five houses. O C. The data are continuous because the data can. 1.2.13 State whether the data described below are discrete or continuous and explain why.The times required by students to complete a statistics test Choose the correct answer below. The data are continuous because the data can take on any value in an interval. This is important to know when we think about what the data are telling us. State whether the data described below are discrete or - JustAnswer Quantitative data, on the other hand, is one that contains numerical values and uses a scope. Frequently Asked Questions, Pew Research Center for the People & the Press, www.people-press.org/methodolwer-your-polls (accessed May 1, 2013). The weights (in pounds) of their backpacks are 6.2, 7, 6.8, 9.1, 4.3. If Doreen and Jung took larger samples (i.e. Do you think that either of these samples is representative of (or is characteristic of) the entire 10,000 part-time student population? Complex numbers and fluctuating data values that be measured over a defined time frame are referred to as continuous data. They both did. For example, 16-ounce cans of beverage may contain more or less than 16 ounces of liquid. Students often ask if it is "good enough" to take a sample, instead of surveying the entire population. Notice that the frequencies do not add up to the total number of students. The size of a sample (often called the number of observations) is important. State whether the data described below are discrete or continuous, and explain why. O C. Press 5:randInt( and enter 1,6). These 18 quiz scores are a stratified sample. The prison populations of different countries ha Choose the correct answer below. In statistics, a sampling bias is created when a sample is collected from a population and some members of the population are not as likely to be chosen as others (remember, each member of the population should have an equally likely chance of being chosen). The three cans of soup, two packages of nuts, four kinds of vegetables and two desserts are quantitative discrete data because you count them. A sample that is not representative of the population is biased. This data is so important for us that it becomes important to handle and store it properly, without any error. Determine the correct data type (quantitative or qualitative) for the number of cars in a parking lot. The ordinal data only shows the sequences and cannot use for statistical analysis. Most statisticians use various methods of random sampling in an attempt to achieve this goal. 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The colors red, black, black, green, and gray are qualitative data. The station wants to know if its audience would prefer more music or more talk shows. State whether each situation is categorical or quantitative. A student interviews classmates in his algebra class to determine how many pairs of jeans a student owns, on the average. An administrative assistant is asked to stand in front of the library one Wednesday and to ask the first 100 undergraduate students he encounters what they paid for tuition the Fall semester. OD. It is understandable that it must be making you feel nervous right now but your emotions are valid! Gathering information about an entire population often costs too much or is virtually impossible. B. So, you will get the result too! . A study is done to determine the average tuition that San Jose State undergraduate students pay per semester. The road from A to E and the road from C and D are perpendicular and intersect at point F. Theresa's house is at C, 500 feet from the intersection. The data are discrete because the data can take on any value in an interval. Besides simple random sampling, there are other forms of sampling that involve a chance process for getting the sample. It may take any numeric value, within a potential value range of finite or infinite. Procrastination isnt even the last option if you are preparing for a statistics exam. When you have a numeric variable, you need to determine whether it is discrete or continuous. The data are discrete because the data can take on any value in an interval. A.The data are continuous because the data can only take on the data can only take on specificvalues. These data take on only certain numerical values. Great Learning's Blog covers the latest developments and innovations in technology that can be leveraged to build rewarding careers. The data are the number of books students carry in their backpacks. Solved State whether the data described below are discrete - Chegg The table displays Ethnicity of Students but is missing the "Other/Unknown" category. Ans: Ducks in a pond are discrete data because the number of ducks is a finite number. 1. True random sampling is done with replacement. Quantitative data are always numbers. Have some sleep, its important. Experts are tested by Chegg as specialists in their subject area. Lisa reads two-digit groups until she has chosen three class members (that is, she reads 0.94360 as the groups 94, 43, 36, 60). B. The following pie charts have the Other/Unknown category included (since the percentages must add to 100%). Determine whether the given value is from a discrete or continuous data set. 2. Record the number. 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. If we were to examine two samples representing the same population, even if we used random sampling methods for the samples, they would not be exactly the same. That is, once a member is picked, that member goes back into the population and thus may be chosen more than once. Then use simple random sampling to choose proportionate numbers from the first department and do the same for each of the remaining departments. One student has a red backpack, two students have black backpacks, one student has a green backpack, and one student has a gray backpack. The weights (in tons) of the trees in a forestANSWERA.) These values do not have to be complete numbers, but they are values that are fixed. Biased samples that are not representative of the population give results that are inaccurate and not valid. The colors of the houses are white, yellow, white, red, and white. A bar graph is appropriate to compare the relative size of the categories. LBCC Distance Learning (DL) program data in 2010-2011. lastbaldeagle. Two students carry three books, one student carries four books, one student carries two books, and one student carries one book. The data are continuous because the data can take on any value in an interval. Different types of data are used in research, analysis, statistical analysis, data visualization, and data science. Determine whether the data are from discrete data or continuous data set. the chance of picking the first person for any particular sample is 1000 out of 10,000 (0.1000); the chance of picking a different second person is 999 out of 9,999 (0.0999); you do not replace the first person before picking the next person. OC. Whether you are a data scientist, marketer, businessman, data analyst, researcher, or you are in any other profession, you need to play or experiment with raw or structured data. For column 1, Press 5:randInt( and enter 1,10). Self-selected samples: Responses only by people who choose to respond, such as call-in surveys, are often unreliable. The key difference between discrete and continuous data is that discrete data contains the integer or whole number. b. Continuous Data Examples: Measurement of height and weight of a student, Daily temperature measurement of a place, Wind speed measured daily, etc. Now business runs on data, and most companies use data for their insights to create and launch campaigns, design strategies, launch products and services or try out different things. (2012), D is the discrete character data, z is a particular character mapping, and are the parameters of the hOUwie model. If all the money in the 555, find the number of 10 coins in it 12. In this situation, create a bar graph and not a pie chart. For example, the number of subjects in a course, the number of families living in a block, the number of digits in a code, etc. Data may be classified as qualitative, quantitative continuous, or quantitative discrete. The number of books in a rack is a finite countable number. Continuous data: When numerical data has . and the Michigan State University Institutional Animal Care and Use Committee prior to the start of data collection. Quantitative data are the result of counting or measuring attributes of a population. A pollster interviews all human resource personnel in five different high tech companies. For example, it does not make sense to find an average hair color or blood type. . 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. Examples of discrete variables are the number of students and age. This is completely natural. The data he collects are summarized in the histogram. Press ENTER. - Example, Formula, Solved Examples, and FAQs, Line Graphs - Definition, Solved Examples and Practice Problems, Cauchys Mean Value Theorem: Introduction, History and Solved Examples. Books for these classes tend to be expensive. It is from a continuousdata set because 218+ Consultants 4.7 Satisfaction rate The two-digit number 14 corresponds to Macierz, 05 corresponds to Cuningham, and 04 corresponds to Cuarismo. The bar graph is used to graphically represent discrete data. Press ENTER 2 more times (even the repeats). For example, you can not have a natural order for apple, orange, and banana. These data can be represented on a wide variety of graphs and charts, such as bar graphs, histograms, scatter plots, boxplots, pie charts, line graphs, etc. Data that can only take on certain values are discrete data. Common problems to be aware of include. Convenience sampling involves using results that are readily available. A random number generator is used to pick two of those years. On Tax Day, House to Call for Firing Federal Workers Who Owe Back Taxes. The data are discrete because the data can take on any value in an interval. Evaluate it on its merits and the work done. In some situations, having small samples is unavoidable and can still be used to draw conclusions. B. Think about what contributes to making Doreens and Jungs samples different. discrete because the data can only take on specific values . 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. Also, the sample represents only those who showed up to the event earlier than the majority. It also could not be used if the percentages added to less than 100%. Just know that you have prepared and worked hard for this. These kinds of data can be considered in-between qualitative and quantitative data. All members of the four departments with those numbers are the cluster sample. The data are discrete because the data can take on any value in an interval. Measurements of the amount of beverage in a 16-ounce can may vary because different people make the measurements or because the exact amount, 16 ounces of liquid, was not put into the cans. Statistics and Probability questions and answers, state whether the data is continous or discrete The durations of Determine whether the given value is from a discrete or continuous data The data are discrete because the data can only take on specific values. Causality: A relationship between two variables does not mean that one causes the other to occur. Which two towers are closest together. We choose ten different part-time students from the disciplines of chemistry, math, English, psychology, sociology, history, nursing, physical education, art, and early childhood development. The continuous variable can take any value within a range. Systematic sampling is frequently chosen because it is a simple method. pair starts due east and then turns 50 toward north. You will learn why when you study confidence intervals. According to a report, today, at least2.5 quintillion bytes of data are produced per day. Your phone book contains 20,000 residence listings. If you sample without replacement, then the chance of picking the first person is ten out of 25, and then the chance of picking the second person (who is different) is nine out of 24 (you do not replace the first person). Can I get some help? This data helps market researchers understand the customers tastes and then design their ideas and strategies accordingly.