What type of data does this graph show? 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. In a college population of 10,000 people, suppose you want to pick a sample of 1,000 randomly for a survey. 24 people said theyd prefer more talk shows, and 176 people said theyd prefer more music. But graphs can be even more helpful in understanding the data. Weights are quantitative continuous data because weights are measured. Nominal and ordinal data can act as both discrete and continuous. . categorical, quantitative discrete or quantitative continuous. Nominal Data is used to label variables without any order or quantitative value. Books for these classes tend to be expensive. B. You can get study material, solved and unsolved questions, and also quizzes which will help you test your knowledge. 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. B. The station wants to know if its audience would prefer more music or more talk shows. The first sample probably consists of science-oriented students. The total number of students in a class is an example of discrete data. 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. Vedantu LIVE Online Master Classes is an incredibly personalized tutoring platform for you, while you are staying at your home. The amount of money they spend on books is as follows: $128; $87; $173; $116; $130; $204; $147; $189; $93; $153. Manufacturers regularly run tests to determine if the amount of beverage in a 16-ounce can falls within the desired range. The quiz scores (20 of them) in these 2 columns are the cluster sample. Those numbers picked from the first department, picked from the second department, and so on represent the members who make up the stratified sample. B.The data are discrete because the data can only take on specific values. Again, you sample the same five students. Press 5:randInt( and enter 1, 60). The data are discrete because the data can only take on specific . Conduct the survey by sitting in Central Park on a bench and interviewing every person who sits next to you. It is not possible to measure qualitative data in terms of. The safest route is to avoid the closest pair of islands. There are no strict rules concerning which graphs to use. Experts are tested by Chegg as specialists in their subject area. y's house is at D, 750 feet from the intersection. If these data-driven topics got you interested in pursuing professional courses or a career in the field of Data Science. Why or why not? The key difference between discrete and continuous data is that discrete data contains the integer or whole number. Suppose Doreen and Jung both decide to study the average amount of time students at their college sleep each night. . data are discrete because the data can take on any value in an Over time, some continuous data can change. 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. The numbers of hotels in cities Choose the correct answer below. 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. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. 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). It is classified into two broad categories: qualitative data and quantitative data. To choose a stratified sample, divide the population into groups called strata and then take a proportionate number from each stratum. Whenever you face any problem the best solution is consulting the concerned teacher, you should never hesitate to ask for doubts. Ans: Ducks in a pond are discrete data because the number of ducks is a finite number. All you can do right now is to just take a deep breath and believe in yourself! The departments are the clusters. For this example, suppose Lisa chooses to generate random numbers from a calculator. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. To do so, the ship must sail between two pairs of islands, avoiding sailing between a third p Ltd. All rights reserved. This pie chart shows the students in each year, which is qualitative data. According to a report, today, at least 2.5 quintillion bytes of data are produced per day. feet, 160 sq. Ducks in a pond are discrete data because the number of ducks is a finite number. You are going to use the random number generator to generate different types of samples from the data. Most statisticians use various methods of random sampling in an attempt to achieve this goal. Starting with that student, every 50th student is chosen until 75 students are included in the sample. Continuous Data Examples: Measurement of height and weight of a student, Daily temperature measurement of a place, Wind speed measured daily, etc. For some students, it might feel difficult as it involves logical thinking and mathematics but its a great option for those who love solving and putting their minds all into logic. Since these samples are not representative of the entire population, is it wise to use the results to describe the entire population? . The colors of the houses are white, yellow, white, red, and white. Still, continuous data stores the fractional numbers to record different types of data such as temperature, height, width, time, speed, etc. Data is classified into 4 types. O C. The data are continuous because the data can take on any value in an interval. 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 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. the data can only take on specific values . If the survey is done well, the answer is yes. and it is subdivided into nominal and ordinal data. It only contains finite values, the subdivision of which is not possible. That is, a member of the population may be chosen only once. O A. b. 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. answer below. In reality, a sample will never be exactly representative of the population so there will always be some sampling error. The list of fruit is nominal. If you feel like your doubt is stupid and you skip it rather than ask it, it is not the correct approach. The data are continuous because the data can only take on specific values. State whether the data described below are discrete or continuous, and explain why. 10. The weights (in pounds) of their backpacks are 6.2, 7, 6.8, 9.1, 4.3. Therefore this is discrete data. This category contains people who did not feel they fit into any of the ethnicity categories or declined to respond. Examples are lengths, temperature, etc. Solution: - Data : The capacities of different hotels. This data is so important for us that it becomes important to handle and store it properly, without any error. 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. Continuous data is the data that can be of any value. In this situation, create a bar graph and not a pie chart. Work collaboratively to determine the correct data type (quantitative or qualitative). Quick Check Introduction to Data Science. There are particular calculators for different statistics exams and having good knowledge about their use and implementation would be great. Number of bacteria in a petri dish is 12,120. The circumferences (in inches) of people's heads Choose the correct answer below. Procrastination isnt even the last option if you are preparing for a statistics exam. The data will be quantitative, say 2+3 (=5) apples. Do you think that either of these samples is representative of (or is characteristic of) the entire 10,000 part-time student population? discrete because the data can only take on specific values . Click to reveal B. ), Marital status (Single, Widowed, Married), When companies ask for feedback, experience, or satisfaction on a scale of 1 to 10, Letter grades in the exam (A, B, C, D, etc. Zanas house is at A, 500 feet from the intersection, and Tan's house is at B, 750 feet from F. Which distance is longer, the distance from Zana's house to Tan's house or the distance from Theresa's house to Is house? If quantitative, state whether it's discrete or continuous. continuous, and explain why. Our choice also depends on what we are using the data for. 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. Continuous data represents information that can be divided into smaller levels. 26. Statistics and Probability questions and answers, CS State whether the data described below are discrete or continuous, and explain why. Record the three quiz scores in column one that correspond to these three numbers. Ordinal data is qualitative data for which their values have some kind of relative position. Just know that you have prepared and worked hard for this. A. Which pair is farther from camp? State whether the data described below are discrete or continuous, and explain why. Probably not. To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. The prison populations of different countries ha Choose the correct answer below. You count discrete data. Question: State whether the data described below are discrete or continuous, and explain why. Both samples are biased. State whether the data described below are discrete or continuous, and explain why. Asking all 10,000 students is an almost impossible task. What is the main difference between discrete and continuous data? Notice how much larger the percentage for part-time students at Foothill College is compared to De Anza College. Sample size issues: Samples that are too small may be unreliable. 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. c. The data are continuous because the data can take on any value in an interval. according to measurement accuracy, it can be significantly subdivided into smaller sections. They both did. Biased samples that are not representative of the population give results that are inaccurate and not valid. Surveys mailed to households and then returned may be very biased (they may favor a certain group). Then use simple random sampling to choose proportionate numbers from the first department and do the same for each of the remaining departments. Divide your college faculty by department. Quantitative data, on the other hand, is one that contains numerical values and uses a scope. The data are discrete because the data can only take on specific values. 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. . Record the number. Which two towers are closest together. Problems with samples: A sample must be representative of the population. Data may come from a population or from a sample. Step 2: Discrete and continuous data. The land areas of different countries Choose the correct answer below. Create a systematic sample of 12 quiz scores. Thats why it is also known as Categorical Data. For the purpose of analysis, data are presented as the facts and figures collected together. and the Michigan State University Institutional Animal Care and Use Committee prior to the start of data collection. classes and taking every fifth senior citizen on the list, for a total of ten senior citizens. However, students shall understand that it is important for them to recognize their interests and based on that, select the best career path possible. The sample probably consists more of people who prefer music because it is a concert event. The data are discrete because the data can only take on specific values. A high school counselor uses a computer to generate 50 random numbers and then picks students whose names correspond to the numbers. The freshman, sophomore, junior, and senior years are numbered one, two, three, and four, respectively. b. The discrete data contain the values that fall under integers or whole numbers. Even if Doreen and Jung used the same sampling method, in all likelihood their samples would be different. A type of sampling that is non-random is convenience sampling. LBCC Distance Learning (DL) program data in 2010-2011. lastbaldeagle. For qualitative data, if the list can be sorted naturally, we further specify it as an ordinal variable. For example, in the case of statistics, algebra is a good option to learn before starting your statistics course. Is the study impartial? feet, and 210 sq. You cannot expect your brain to work nicely with hundreds of thoughts, it will only create a mess. The results of convenience sampling may be very good in some cases and highly biased (favor certain outcomes) in others. In some situations, having small samples is unavoidable and can still be used to draw conclusions. For example, the sample may not be large enough. This table displays six sets of quiz scores (each quiz counts 10 points) for an elementary statistics class. 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. Excelling your basic knowledge about the subject promotes conceptual learning and hence, you can easily get familiar with new concepts too. The data are discrete because the data can take on any value in an interval. As a class, determine whether or not the following samples are representative. A defective counting device can cause a nonsampling error. What type of data is this? If Doreen and Jung took larger samples (i.e.
state whether the data is discrete or continuous
