If all the money in the 555, find the number of 10 coins in it 12. Asking all 10,000 students is an almost impossible task. For column 1, Press 5:randInt( and enter 1,10). O A. Rational Numbers Between Two Rational Numbers, XXXVII Roman Numeral - Conversion, Rules, Uses, and FAQs, Find Best Teacher for Online Tuition on Vedantu. Since this is the case, sampling without replacement is approximately the same as sampling with replacement because the chance of picking the same individual more than once with replacement is very low. a chemical reaction comma repeated several times Choose the correct The data are continuous because the data can take on any value in an interval. For example, the sample may not be large enough. O A. Evaluate it on its merits and the work done. 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. Those numbers picked from the first department, picked from the second department, and so on represent the members who make up the stratified sample. On Tax Day, House to Call for Firing Federal Workers Who Owe Back Taxes. Two positions of an open gate are shown. We are interested in the average amount of money a part-time student spends on books in the fall term. These kinds of data are also known as Numerical data. Try to identify additional data sets in this example. Examples: crash testing cars or medical testing for rare conditions, Undue influence: collecting data or asking questions in a way that influences the response. It may take any numeric value, within a potential value range of finite or infinite. 8. Surely, you can get all the study material on Vedantu mobile app- learn live online. Look at Figures \(\PageIndex{3}\) and \(\PageIndex{4}\) and determine which graph (pie or bar) you think displays the comparisons better. Create a cluster sample by considering each state as a stratum (group). Again, you sample the same five students. Hint: Data that are discrete often start with the words "the number of." the number of pairs of shoes you own. Question: State whether the data described below are discrete or continuous, and explain why. Larger samples are better, if possible. One student has a red backpack, two students have black backpacks, one student has a green backpack, and one student has a gray backpack. B. The second sample is a group of senior citizens who are, more than likely, taking courses for health and interest. Over time, some continuous data can change. QUESTIONState whether the data described below are discrete or continuous, and explain why. For example, 16-ounce cans of beverage may contain more or less than 16 ounces of liquid. feet, 160 sq. 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. Statistical data needs to be critically analyzed, not simply accepted. 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. Press ENTER 2 more times (even the repeats). The table displays Ethnicity of Students but is missing the "Other/Unknown" category. The data are continuous because the data can take on any value in an interval. Work collaboratively to determine the correct data type (quantitative or qualitative). No. Additional Resources Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. To find out the most popular cereal among young people under the age of ten, stand outside a large supermarket for three hours and speak to every twentieth child under age ten who enters the supermarket. 3. Confounding: When the effects of multiple factors on a response cannot be separated. Excelling your basic knowledge about the subject promotes conceptual learning and hence, you can easily get familiar with new concepts too. 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To do so, the ship must sail between two pairs of islands, avoiding sailing between a third p The continuous data can be broken down into fractions and decimals, i.e. When you have a numeric variable, you need to determine whether it is discrete or continuous. The students spend the following amounts: $180; $50; $150; $85; $260; $75; $180; $200; $200; $150. The number of animals in a zoo is continuous data because the number of animals varies yearly depending on the reproduction of new animals or the arrival of new animals. Ordinal data have natural ordering where a number is present in some kind of order by their position on the scale. CS State whether the data described below are discrete or continuous, and explain why. Statistics and Probability questions and answers, CS State whether the data described below are discrete or continuous, and explain why. Solution: - Data : The capacities of different hotels. 1. These values do not have to be complete numbers, but they are values that are fixed. discrete because the data can only take on specific values . Press ENTER two more times for the other 2 random numbers. The data are continuous because the data can only take on specific values. Quantitative data, on the other hand, is one that contains numerical values and uses a scope. Qualitative or Categorical Data is data that cant be measured or counted in the form of numbers. It includes only those values which are separate and can only be counted in whole numbers or integers, which means that the data can not be split into fractions or decimals. When you analyze data, it is important to be aware of sampling errors and nonsampling errors. For example, if you randomly sample four departments from your college population, the four departments make up the cluster sample. The data are continuous because the data can take A completely random method is used to select 75 students. Still, continuous data stores the fractional numbers to record different types of data such as temperature, height, width, time, speed, etc. interval. 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. The amount of money they spend on books is probably much less than the average parttime student. c. Samples of only a few hundred observations, or even smaller, are sufficient for many purposes. 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. Qualitative data are generally described by words or letters. 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. Compared to nominal data, ordinal data have some kind of order that is not present in nominal data. 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. according to measurement accuracy, it can be significantly subdivided into smaller sections. Q: Classify the Following as Discrete and Continuous Data. You should know how to manage your time and utilize it in the best way possible. B. This is completely natural. A. This data helps market researchers understand the customers tastes and then design their ideas and strategies accordingly. The two numbers are for two of the columns. A high school principal polls 50 freshmen, 50 sophomores, 50 juniors, and 50 seniors regarding policy changes for after school activities. Doreen and Jung each take samples of 500 students. Statistics involves organizing, analyzing, interpreting, and representing data. What is the type of sampling in each case? The action you just performed triggered the security solution. 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). . Determine whether the data described below are qualitative or quantitative and explain why: . Record the number and the first quiz score. A pie chart cannot be used. Work more on basics as they form the basis for many other concepts. categorical, quantitative discrete or quantitative continuous. The data are the colors of backpacks. When properly selected, larger samples model the population more closely than smaller samples. 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. 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. The first sample probably consists of science-oriented students. Besides herself, Lisas group will consist of Marcierz, Cuningham, and Cuarismo. For the purpose of analysis, data are presented as the facts and figures collected together. Examples are lengths, temperature, etc. Create a systematic sample of 12 quiz scores. For this example, suppose Lisa chooses to generate random numbers from a calculator. . A sample should have the same characteristics as the population it is representing. For example, the number of desks in an office, the number of times a dice is rolled, the number of telephone calls received, etc. This site is using cookies under cookie policy . A sample that is not representative of the population is biased. State whether the data described below are discrete or continuous, and explain why. Click to reveal It also could not be used if the percentages added to less than 100%. While working on these data, it is important to know the types of data to process them and get the right results. 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. State whether the data described below are discrete or continuous, and explain why. A local radio station has a fan base of 20,000 listeners. Suppose ABC College has 10,000 part-time students (the population). Your IP: The Literary Digest Poll, Virtual Laboratories in Probability and Statistics, Gallup Presidential Election Trial-Heat Trends, 19362008, Gallup Politics. All the members from these clusters are in the cluster sample. For instance, hair color might be black, dark brown, light brown, blonde, gray, or red. Statistics and Probability questions and answers, state whether the data is continous or discrete The durations of The continuous variable can take any value within a range. Have some sleep, its important. A histogram is used to display quantitative data: the numbers of credit hours completed. Then use simple random sampling to choose proportionate numbers from the first department and do the same for each of the remaining departments. 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. By using simple random sampling, select states to be part of the cluster. They both did. The color of hair can be considered nominal data, as one color cant be compared with another color. As a class, determine whether or not the following samples are representative. Data may come from a population or from a sample. Quantitative data can be used for statistical manipulation. Using a calculator, random numbers are generated and a student from a particular discipline is selected if he or she has a corresponding number. What type of data is this? 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. The first 5 (2006). It can be the version of an android phone, the height of a person, the length of an object, etc. feet, 190 sq. A pollster interviews all human resource personnel in five different high tech companies. Confounding makes it difficult or impossible to draw valid conclusions about the effect of each factor. Manufacturers regularly run tests to determine if the amount of beverage in a 16-ounce can falls within the desired range. This variability in samples cannot be stressed enough. The sample probably doesnt represent the entire fan base and is probably biased towards people who would prefer music. Height is continuous but we sometimes don't really worry too much about minor variations and club heights into a set of discrete data instead. The numbers of hotels in cities Choose the correct answer below. The data are continuous because the data can only take on specific values. 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. Each travels 2 miles, then changes direction and travels 1.2 miles. This is important to know when we think about what the data are telling us. To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. Asking all 20,000 listeners is an almost impossible task. Examples of discrete variables are the number of students and age. Show More. Data that can only take on certain values are discrete data. 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. according to measurement accuracy, it can be significantly subdivided into smaller sections. A type of sampling that is non-random is convenience sampling. The data are continuous because the data can take on any value in an interval. The numbers generated are as follows: 0.94360; 0.99832; 0.14669; 0.51470; 0.40581; 0.73381; 0.04399. state whether the data is continous or discrete The durations of 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. 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. Create a simple random sample of 15 quiz scores. The data he collects are summarized in the histogram. Because students can complete only a whole number of hours (no fractions of hours allowed), this data is quantitative discrete. State whether the data described below are discrete or? This particular bar graph in Figure \(\PageIndex{4}\) can be difficult to understand visually. This section will describe a few of the most common methods. a. stratified; b. cluster; c. stratified; d. systematic; e. simple random; f.convenience. state whether the data is continous or discrete The durations of a chemical reaction comma repeated several times Choose the correct answer below. Complex numbers and fluctuating data values that be measured over a defined time frame are referred to as continuous data. continuous, and explain why. The use of discrete and continuous quantitative variables would be helpful for detecting intervention effects . A. The numbers of programs installed on various computers ANSWERA.) A variable is said to be continuous if it can take on any value in an interval. If you did the experiment a third time, do you expect the results to be identical to the first or second experiment? To choose a simple random sample of size three from the other members of her class, Lisa could put all 31 names in a hat, shake the hat, close her eyes, and pick out three names. Continuous data are in the form of fractional numbers. 2. These values do not have to be complete numbers, but they are values that are fixed. OB. C. The data are Your email address will not be published. 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. The distance from G to H in I want to study the topic of Statistics for my college-level exams? Since these samples are not representative of the entire population, is it wise to use the results to describe the entire population? O B. The data are discrete because the data can . To determine the proportion of people taking public transportation to work, survey 20 people in New York City. If we have quantitative data, such as the correct number of questions on a test, then the data can be continuous or discrete. It is also important to know what kind of plot is suitable for which data category; it helps in data analysis and visualization. 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 freshman, sophomore, junior, and senior years are numbered one, two, three, and four, respectively. Instructions: Use the Random Number Generator to pick samples. What type of data is this? Learn data analytics or software development & get guaranteed* placement opportunities. It is understandable that it must be making you feel nervous right now but your emotions are valid! For the purpose of analysis, data are presented as the facts and figures collected together. Press ENTER. Nominal data.Ordinal data.Discrete data.Continuous data. C. The data are a. B. Do you think that this sample is representative of (or is characteristic of) the entire 20,000 listener population? Its really normal for you to feel anxious before your exam especially when the subject is statistics. Many of these students are taking first term calculus in addition to the organic chemistry class. Books for these classes tend to be expensive. When a sampling bias happens, there can be incorrect conclusions drawn about the population that is being studied. Those 100 students are the sample. The size of a sample (often called the number of observations) is important. The data are continuous because the data can only take on specific values. Discrete vs continuous data are two broad categories of numeric variables. Statistical data about spreading of the epidemic are known in discrete periods of time, for example twenty-four hours. Number the population 120,000 and then use a simple random sample to pick a number that represents the first name in the sample. According to a report, today, at least 2.5 quintillion bytes of data are produced per day. State whether the data described below are discrete or continuous, and explain why. 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. The Pareto chart has the bars sorted from largest to smallest and is easier to read and interpret. This website is using a security service to protect itself from online attacks. You can go for a business analyst or a statistician or a financial analyst or even an economist etc. The data are discrete because the data can only take on specific values. Great Learning's Blog covers the latest developments and innovations in technology that can be leveraged to build rewarding careers. For the purpose of analysis, data are presented as the facts and figures collected together. The colors red, black, black, green, and gray are qualitative data. Divide into groups of two, three, or four. Data are individual items of information that come from a population or sample. You have to be dedicated. Press MATH. 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. It is classified into two broad categories: qualitative data and quantitative data. For accuracy, carry the decimal answers to four decimal places. The circumferences (in inches) of people's heads Choose the correct answer below. Divide your college faculty by department. Hair color, blood type, ethnic group, the car a person drives, and the street a person lives on are examples of qualitative data. 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. What can you conclude about the angles opposite these sides? Also, in both cases, not all students have a chance to be in either sample. B. A stated earlier, Lengths are in general, continuous variables. You can get study material, solved and unsolved questions, and also quizzes which will help you test your knowledge. From that number, count ten quiz scores and record that quiz score. Most statisticians use various methods of random sampling in an attempt to achieve this goal. The data are discrete because the data can only take on specific values. Even if Doreen and Jung used the same sampling method, in all likelihood their samples would be different. It is further classified as discrete data and continuous data. 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. The examples you have seen in this book so far have been small. Continuous information is information that falls into a continuous series. The three cans of soup, two packages of nuts, four kinds of vegetables and two desserts are quantitative discrete data because you count them. The triangles show the position of the gate in relation to its closed position. The data are the number of books students carry in their backpacks. LBCC Distance Learning (DL) program data in 2010-2011. lastbaldeagle.