2003-2023 Chegg Inc. All rights reserved. State whether the data described below are discrete or continuous, and explain why. b. You can specify conditions of storing and accessing cookies in your browser. The data are the areas of lawns in square feet. The data are continuous because the data can only take on specific values. You can also visit their website. Quantitative data can be expressed in numerical values, making it countable and including statistical data analysis. A.The data are continuous because the data can only take on the data can only take on specificvalues. 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. Indicate whether quantitative data are continuous or discrete. Confounding: When the effects of multiple factors on a response cannot be separated. Show how you know. Show Less. . Read the study carefully to evaluate the work. Compared to nominal data, ordinal data have some kind of order that is not present in nominal data. 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. Doreen and Jung each take samples of 500 students. Ducks in a pond are discrete data because the number of ducks is a finite number. The second pair starts due west and then turns 40 toward south. Experts are tested by Chegg as specialists in their subject area. The weights of the soups (19 ounces, 14.1 ounces, 19 ounces) are quantitative continuous data because you measure weights as precisely as possible. 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. However, students shall understand that it is important for them to recognize their interests and based on that, select the best career path possible. When a car is randomly selected, it is found to have 3 wipers. First, we use convenience sampling and survey ten students from a first term organic chemistry class. 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. There are two types of data: Qualitative and Quantitative data, which are further classified into: 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. 5. OD. Then choose every fiftieth name thereafter until you have a total of 400 names (you might have to go back to the beginning of your phone list). Have some sleep, its important. A type of sampling that is non-random is convenience sampling. a. stratified; b. cluster; c. stratified; d. systematic; e. simple random; f.convenience. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The percent columns make comparing the same categories in the colleges easier. Hint: Data that are discrete often start with the words "the number of." the number of pairs of shoes you own. When properly selected, larger samples model the population more closely than smaller samples. The data are discrete because the data can take on any value in an interval. Roll one fair die (six-sided) 20 times. Create a cluster sample by picking two of the columns. 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. All you can do right now is to just take a deep breath and believe in yourself! Collecting data carelessly can have devastating results. Otherwise, the variable is nominal. You can get study material, solved and unsolved questions, and also quizzes which will help you test your knowledge. Quantitative data are always numbers. But still, their samples would be, in all likelihood, different from each other. To determine the proportion of people taking public transportation to work, survey 20 people in New York City. Also, the sample represents only those who showed up to the event earlier than the majority. The data are continuous because 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. A high school counselor uses a computer to generate 50 random numbers and then picks students whose names correspond to the numbers. Record the number. Determine whether the data described below are qualitative or quantitative and explain why: . To determine the average cost of a two-day stay in a hospital in Massachusetts, survey 100 hospitals across the state using simple random sampling. Can we have both discrete data and continuous data from the same experiment? The following pie charts have the Other/Unknown category included (since the percentages must add to 100%). Press MATH. 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. Step 2: Discrete and continuous data. A discrete variable, on the other hand, can only take on specific values. Data is classified into 4 types. The numbers of countries in the world in different years Choose the correct answer below. Suppose ABC College has 10,000 part-time students (the population). 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 \(\PageIndex{6}\). 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. The data are discrete because the data can only take on specific values. In polling, samples that are from 1,200 to 1,500 observations are considered large enough and good enough if the survey is random and is well done. (2012), D is the discrete character data, z is a particular character mapping, and are the parameters of the hOUwie model. When you have a numeric variable, you need to determine whether it is discrete or continuous. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. 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. B. On Tax Day, House to Call for Firing Federal Workers Who Owe Back Taxes. air. Asking all 10,000 students is an almost impossible task. The data are discrete because the data can only take on specific values. 25. A discrete data set because there are a finite number of possible values. Finite values have discrete data. You have to be dedicated. answer below. 2013. For the purpose of analysis, data are presented as the facts and figures collected together. Just as there is variation in data, there is variation in samples. A high school educational researcher interviews 50 high school female teachers and 50 high school male teachers. So is the case of statistics too. The following graph is the same as the previous graph but the Other/Unknown percent (9.6%) has been included. c . A continuous data set because there are infinitely many possible values and those values cannot be counted. According to a report, today, at least 2.5 quintillion bytes of data are produced per day. The data are the number of machines in a gym. Performance & security by Cloudflare. The distance from G to H in Suppose we take two different samples. You measure continuous data. Frequently Asked Questions, Pew Research Center for the People & the Press, www.people-press.org/methodolwer-your-polls (accessed May 1, 2013). The data are discrete because the data can only take on specific values. What is the type of sampling in each case? What type of data is this? 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. What type of data does this graph show? Then use simple random sampling to choose proportionate numbers from the first department and do the same for each of the remaining departments. according to measurement accuracy, it can be significantly subdivided into smaller sections. a. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The continuous data can be broken down into fractions and decimals, i.e. The two-digit number 14 corresponds to Macierz, 05 corresponds to Cuningham, and 04 corresponds to Cuarismo. Doreen's sample will be different from Jung's sample. Do you think that this sample is representative of (or is characteristic of) the entire 20,000 listener population? The departments are the clusters. 2003-2023 Chegg Inc. All rights reserved. B.The data are discrete because the data can only take on specific values. If the survey is done well, the answer is yes. There are distinct or different values in discrete data. Your email address will not be published. 134.209.154.177 Common problems to be aware of include. Below are tables comparing the number of part-time and full-time students at De Anza College and Foothill College enrolled for the spring 2010 quarter. Your IP: Quantitative data may be either discrete or continuous. Which two towers are closest together. a chemical reaction comma repeated several times Choose the correct However for practical reasons, in most populations, simple random sampling is done without replacement. Difference Between Continuous and Discrete Data, Questions on Discrete Data Continuous Data. And this is the reason why most students find it to be an interesting subject. To four decimal places, 9/25 = 0.3600 and 9/24 = 0.3750. Many other courses are available online to master your foundational knowledge which may assist you later. The other examples of qualitative data are : Difference between Nominal and Ordinal Data, Difference between Discrete and Continuous Data, 22 Top Data Science Books Learn Data Science Like an Expert, PGP In Data Science and Business Analytics, PGP In Artificial Intelligence And Machine Learning, Nominal data cant be quantified, neither they have any intrinsic ordering, Ordinal data gives some kind of sequential order by their position on the scale, Nominal data is qualitative data or categorical data, Ordinal data is said to be in-between qualitative data and quantitative data, They dont provide any quantitative value, neither can we perform any arithmetical operation, They provide sequence and can assign numbers to ordinal data but cannot perform the arithmetical operation, Nominal data cannot be used to compare with one another, Ordinal data can help to compare one item with another by ranking or ordering, Discrete data are countable and finite; they are whole numbers or integers, Continuous data are measurable; they are in the form of fractions or decimal, Discrete data are represented mainly by bar graphs, Continuous data are represented in the form of a histogram, The values cannot be divided into subdivisions into smaller pieces, The values can be divided into subdivisions into smaller pieces, Discrete data have spaces between the values, Continuous data are in the form of a continuous sequence, Opinion on something (agree, disagree, or neutral), Colour of hair (Blonde, red, Brown, Black, etc. Whenever you face any problem the best solution is consulting the concerned teacher, you should never hesitate to ask for doubts. 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. The numbers of books (three, four, two, and one) are the quantitative discrete data. Statistics involves organizing, analyzing, interpreting, and representing data. You go to the supermarket and purchase three cans of soup (19 ounces) tomato bisque, 14.1 ounces lentil, and 19 ounces Italian wedding), two packages of nuts (walnuts and peanuts), four different kinds of vegetable (broccoli, cauliflower, spinach, and carrots), and two desserts (16 ounces Cherry Garcia ice cream and two pounds (32 ounces chocolate chip cookies). The continuous data can be broken down into. A sample should have the same characteristics as the population it is representing. The students spend the following amounts: $180; $50; $150; $85; $260; $75; $180; $200; $200; $150. For instance, hair color might be black, dark brown, light brown, blonde, gray, or red. 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. Surely, you can get all the study material on Vedantu mobile app- learn live online. O C. The data are continuous because the data can. What are the career options in the field of Statistics? Indicate whether quantitative data are continuous or discrete. Often, people with strong positive or negative opinions may answer surveys, which can affect the results. This is true even when the samples are well-chosen and representative of the population. It is classified into two broad categories: qualitative data and quantitative data. Vedantu LIVE Online Master Classes is an incredibly personalized tutoring platform for you, while you are staying at your home. No. If there is a repeat press ENTER again. Making a schedule/timetable or studying together with your peers may help you in focusing and keep you active. On your calculator, press Math and arrow over to PRB. the type of car you drive. The triangles show the position of the gate in relation to its closed position. A. D. The Press ENTER 2 more times (even the repeats). The exact lengths (in kilometers) of the ocean coastlines of different countries is a continuous variable because it can take on any value in an interval. A continuous data set because there are infinitely mamy possible values and those values cannot be counted. One student has a red backpack, two students have black backpacks, one student has a green backpack, and one student has a gray backpack. Causality: A relationship between two variables does not mean that one causes the other to occur. 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. The data are continuous because the data can take on any value in an interval. Click to reveal and the Michigan State University Institutional Animal Care and Use Committee prior to the start of data collection. Gathering information about an entire population often costs too much or is virtually impossible. O A. Quantitative data are the result of counting or measuring attributes of a population. This data is so important for us that it becomes important to handle and store it properly, without any error. To choose a systematic sample, randomly select a starting point and take every nth piece of data from a listing of the population. pair starts due east and then turns 50 toward north. All members of the four departments with those numbers are the cluster sample. It is not possible to measure qualitative data in terms of numbers and it is subdivided into nominal and ordinal data. For example, it does not make sense to find an average hair color or blood type. Ra a. The data are because.continuous the data can take on any value in an interval B. For example, if you randomly sample four departments from your college population, the four departments make up the cluster sample. The use of discrete and continuous quantitative variables would be helpful for detecting intervention effects . Create a stratified sample by column. It is classified into two broad categories: qualitative data and quantitative data. True random sampling is done with replacement. Notice that the frequencies do not add up to the total number of students. Confounding makes it difficult or impossible to draw valid conclusions about the effect of each factor. B. For example, you can not have a natural order for apple, orange, and banana. 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. In each form of random sampling, each member of a population initially has an equal chance of being selected for the sample. Then survey every U.S. congressman in the cluster. Procrastination isnt even the last option if you are preparing for a statistics exam. You sample five houses. Instead, we use a sample of the population. 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. The data are continuous because the data can take on any value in an interval. Ltd. All rights reserved. Self-funded or self-interest studies: A study performed by a person or organization in order to support their claim. However the third random number, 0.14669, contains 14 (the fourth random number also contains 14), the fifth random number contains 05, and the seventh random number contains 04. Divide your college faculty by department. For these samples, each member of the population did not have an equally likely chance of being chosen. You sample the same five students. The Other/Unknown category is large compared to some of the other categories (Native American, 0.6%, Pacific Islander 1.0%). Thats why it is also known as Categorical Data. Record the number of ones, twos, threes, fours, fives, and sixes you get in the following table (frequency is the number of times a particular face of the die occurs): Did the two experiments have the same results? Question: CS State whether the data described below are discrete or continuous, and explain why. Qualitative or Categorical Data is data that cant be measured or counted in the form of numbers. What type of data is this? The numbers of hotels in cities Choose the correct answer below. The Pareto chart has the bars sorted from largest to smallest and is easier to read and interpret. Now, suppose we take a third sample. A sample that is not representative of the population is biased.

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