state whether the data is discrete or continuoushearne funeral home obituaries

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. Record these numbers. Record the number. A sample should have the same characteristics as the population it is representing. There are a number of options if you go for the statistics degree. The time(in minutes) it takes The time(in minutes) it takes A: It is given that the time (in minutes) it takes different students to drive to school from home. classes and taking every fifth senior citizen on the list, for a total of ten senior citizens. The data are continuous because the data can only take on specific values. Be aware that as you take data, your data may vary somewhat from the data someone else is taking for the same purpose. The station uses convenience sampling and surveys the first 200 people they meet at one of the stations music concert events. The points are associated with an unbroken line. B. 26. The continuous data can be broken down into fractions and decimals, i.e. Continuous Data Examples: Measurement of height and weight of a student, Daily temperature measurement of a place, Wind speed measured daily, etc. It is further classified as discrete data and continuous data. Data is classified into 4 types. As a rule, the larger the sample, the smaller the sampling error. Try to identify additional data sets in this example. Statistical data needs to be critically analyzed, not simply accepted. Experts are tested by Chegg as specialists in their subject area. The data are because.continuous the data can only take on specific values C. The data are the colors of backpacks. Hint: Data that are discrete often start with the words "the number of.". Also read: 22 Top Data Science Books Learn Data Science Like an Expert. The continuous data can be broken down into. Discrete data: When numerical data has values that are countable and specific to a particular category, it is called discrete data. The distance from G to H in Data that can only take on certain values are discrete 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). That is, once a member is picked, that member goes back into the population and thus may be chosen more than once. B. Probably not. They may be related (correlated) because of their relationship through a different variable. a chemical reaction comma repeated several times Choose the correct ), Ranking of people in a competition (First, Second, Third, etc. The data are discrete because the data can take on any value in an interval. You must choose 400 names for the sample. Besides simple random sampling, there are other forms of sampling that involve a chance process for getting the sample. Do you think that this sample is representative of (or is characteristic of) the entire 20,000 listener population? What are the career options in the field of Statistics? Most data can be put into the following categories: Qualitative data are the result of categorizing or describing attributes of a population. Most samples are taken from large populations and the sample tends to be small in comparison to the population. Procrastination isnt even the last option if you are preparing for a statistics exam. Be aware that many large samples are biased. O B. interval. 8. Press ENTER. The numbers of countries in the world in different years Choose the correct answer below. Statistics involves organizing, analyzing, interpreting, and representing data. A stated earlier, Lengths are in general, continuous variables. There are distinct or different values in discrete data. Solution: - Data : The capacities of different hotels. Record the quiz scores that correspond to these numbers. The numbers generated are as follows: 0.94360; 0.99832; 0.14669; 0.51470; 0.40581; 0.73381; 0.04399. The measure of ZQ is 10 less than the measure of LP. When properly selected, larger samples model the population more closely than smaller samples. 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. A continuous data set because there are infinitely mamy possible values and those values cannot be counted. the data can only take on specific values . Misleading use of data: improperly displayed graphs, incomplete data, or lack of context. 10. A student interviews classmates in his algebra class to determine how many pairs of jeans a student owns, on the average. Self-selected samples: Responses only by people who choose to respond, such as call-in surveys, are often unreliable. It may take any numeric value, within a potential value range of finite or infinite. Excelling your basic knowledge about the subject promotes conceptual learning and hence, you can easily get familiar with new concepts too. Log on to our website and explore courses delivered by industry experts. Think about what contributes to making Doreens and Jungs samples different. The amount of money they spend on books is as follows: $128; $87; $173; $116; $130; $204; $147; $189; $93; $153. You will learn why when you study confidence intervals. . The data are discrete because the data can only take on specific values. The data are the number of books students carry in their backpacks. This website is using a security service to protect itself from online attacks. B. The colors of the houses are white, yellow, white, red, and white. The data are continuous because the data can only take on specific values. Roll one fair die (six-sided) 20 times. Determine the type of sampling used (simple random, stratified, systematic, cluster, or convenience). All data that are the result of counting are called quantitative discrete data. This table displays six sets of quiz scores (each quiz counts 10 points) for an elementary statistics class. Discrete data. Instead, we use a sample of the population. 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. State whether the data described below are discrete or continuous and explain why The amounts of time that different - Answered by a verified Tutor . The data are continuous because the data can only take on specific values . Items a, e, f, k, and l are quantitative discrete; items d, j, and n are quantitative continuous; items b, c, g, h, i, and m are qualitative. Therefore this is discrete data. B. 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 data are continuous because the data can take on any value in an interval. c . Record the three quiz scores in column one that correspond to these three numbers. Making a schedule/timetable or studying together with your peers may help you in focusing and keep you active. The results of convenience sampling may be very good in some cases and highly biased (favor certain outcomes) in others. The station wants to know if its audience would prefer more music or more talk shows. Record the number. The safest route is to avoid the closest pair of islands. 2. These data cant be broken into decimal or fraction values. To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. 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. No. The exact distances (in centimeters) between the chairs in a college classroom. Create a cluster sample by considering each state as a stratum (group). O A. B. These types of data are sorted by category, not by number. So, you will get the result too! The data . 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). Non-response or refusal of subject to participate: The collected responses may no longer be representative of the population. 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. Discrete vs continuous data are two broad categories of numeric variables. Starting with that student, every 50th student is chosen until 75 students are included in the sample. Sampling data should be done very carefully. LBCC Distance Learning (DL) program data in 2010-2011. lastbaldeagle. Indicate whether quantitative data are continuous or discrete. Convenience sampling involves using results that are readily available. OC. 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. The option "B" is correct i.e. All data that are the result of measuring are quantitative continuous data assuming that we can measure accurately. Continuous data: When numerical data has . Each undergraduate student in the fall semester has the same probability of being chosen at any stage of the sampling process. You sample five gyms. Have some sleep, its important. Rational Numbers Between Two Rational Numbers, XXXVII Roman Numeral - Conversion, Rules, Uses, and FAQs, Find Best Teacher for Online Tuition on Vedantu. The following pie charts have the Other/Unknown category included (since the percentages must add to 100%). 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. Instructions: Use the Random Number Generator to pick samples. Dominic Lusinchi, President Landon and the 1936 Literary Digest Poll: Were Automobile and Telephone Owners to Blame? Social Science History 36, no. A histogram is used to display quantitative data: the numbers of credit hours completed. What type of data is this? air. When you have a numeric variable, you need to determine whether it is discrete or continuous. The weights (in tons) of the trees in a forestANSWERA.) The sample probably doesnt represent the entire fan base and is probably biased towards people who would prefer music. 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. 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). On your calculator, press Math and arrow over to PRB. Compared to nominal data, ordinal data have some kind of order that is not present in nominal data. For example, if the population is 25 people, the sample is ten, and you are sampling with replacement for any particular sample, then the chance of picking the first person is ten out of 25, and the chance of picking a different second person is nine out of 25 (you replace the first person). The departments are the clusters. Sometimes percentages add up to be more than 100% (or less than 100%). These values do not have to be complete numbers, but they are values that are fixed. Points in a graph of the discrete function remain unconnected. It is also important to know what kind of plot is suitable for which data category; it helps in data analysis and visualization. Discrete is data that can take only certain values. Create a simple random sample of 15 quiz scores. The data are discrete because the data can take on any value in an interval. If you feel like your doubt is stupid and you skip it rather than ask it, it is not the correct approach. Age is discrete data because we could be infinitely precise and use an infinite number of decimal places, rendering age continuous as a result. Self-funded or self-interest studies: A study performed by a person or organization in order to support their claim. (2012), D is the discrete character data, z is a particular character mapping, and are the parameters of the hOUwie model. These data dont have any meaningful order; their values are distributed into distinct categories. According to a report, today, at least2.5 quintillion bytes of data are produced per day. These values do not have to be complete numbers, but they are values that are fixed. Ordinal data have natural ordering where a number is present in some kind of order by their position on the scale. Those numbers picked from the first department, picked from the second department, and so on represent the members who make up the stratified sample. CS State whether the data described below are discrete or continuous, and explain why. 2013 - 2023 Great Lakes E-Learning Services Pvt. If you're asked whether age is a continuous or discrete variable in an Introductory Statistics class, the correct answer is technically continuous. However, generally, we use age as a discrete variable. As a class, determine whether or not the following samples are representative. Neither would be wrong, however. D. The 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 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. A statistics professor collects information about the classification of her students as freshmen, sophomores, juniors, or seniors. The tables display counts (frequencies) and percentages or proportions (relative frequencies). The data are the areas of lawns in square feet. 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status page at https://status.libretexts.org, Students who intend to transfer to a 4-year educational institution. Quantitative data are always numbers. For example, 16-ounce cans of beverage may contain more or less than 16 ounces of liquid. Nominal Data is used to label variables without any order or quantitative value. The triangles show the position of the gate in relation to its closed position. Most of these students are, more than likely, paying more than the average part-time student for their books. Books for these classes tend to be expensive. It is countable. 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). True random sampling is done with replacement. 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. O C. The size of a sample (often called the number of observations) is important. 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. 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. You can email the site owner to let them know you were blocked. For example, call-in surveys are invariably biased, because people choose to respond or not. A study is done to determine the average tuition that San Jose State undergraduate students pay per semester. The Other/Unknown category is large compared to some of the other categories (Native American, 0.6%, Pacific Islander 1.0%). For column 1, Press 5:randInt( and enter 1,10). I want to study the topic of Statistics for my college-level exams? The numbers of books (three, four, two, and one) are the quantitative discrete data. Tables are a good way of organizing and displaying data. Ans: Ducks in a pond are discrete data because the number of ducks is a finite number. Researchers often prefer to use quantitative data over qualitative data because it lends itself more easily to mathematical analysis. Here are a few steps to prepare well for your exam which has statistics as a part of the course. The total number of students in a class is an example of discrete data. The durations of a chemical reaction comma repeated . One gym has 12 machines, one gym has 15 machines, one gym has ten machines, one gym has 22 machines, and the other gym has 20 machines. Then survey every U.S. congressman in the cluster. The data are discrete because the data can take on any value in an interval. No. It is from a continuousdata set because 218+ Consultants 4.7 Satisfaction rate pair starts due east and then turns 50 toward north. That is, a member of the population may be chosen only once. Because students can complete only a whole number of hours (no fractions of hours allowed), this data is quantitative discrete. Name data sets that are quantitative discrete, quantitative continuous, and qualitative. categorical, quantitative discrete or quantitative continuous. The examples you have seen in this book so far have been small. the number of classes you take per school year. State whether the data described below are discrete or continuous, and explain why. Students often ask if it is "good enough" to take a sample, instead of surveying the entire population. b. Your email address will not be published. Small letters like \(x\) or \(y\) generally are used to represent data values. 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. ), Education Level (Higher, Secondary, Primary), Total numbers of students present in a class, The total number of players who participated in a competition. The data are the number of machines in a gym. The result of the rolling is a dice is 1, 2, 3, 4, 5, 6, 7, and 8. For accuracy, carry the decimal answers to four decimal places. 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. The action you just performed triggered the security solution. It only contains finite values, the subdivision of which is not possible. This is completely natural. To four decimal places, these numbers are equivalent (0.0999). 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.

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