A Quick-Change Oil company has a number of outlets. The numbers of oil changes at the 2"ndstreet outlet in the past 20 days are as follows:74 69 32 31 67 33 71 76 78 4566 53 63 75 51 76 69 36 42 441. Organize the data into a frequency distribution?2. Determine the relative frequency distribution3. How many classes would you recommend? Use either "2 to the k rule" or square root(V) formula.4. What class interval would you suggest?5. What lower limit would you recommend?6. Draw a histogram?7. Comment on the shape of the distribution

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Answered: A Quick-Change Oil company has a number…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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We need to construct a frequency distribution for a certain variable in statistics in order to . Select one: A. Organize the collected data for the variable. O B. Present the behavior of the variable in graphic form Identify the classes of the variables. D. Options A and B O E. Options A and C
The number of caps sold by a local shop in a day is recorded below. Draw a frequency distribution table and a histogram displaying this data. Use an interval size of 20 and make sure to start your first interval at zero
Back up your data: In a survey backed up their computer's hard drive. The following frequency distribution presents the results. mmissioned by an electronics company, U.S. computer users wereasked how often they Response More than once per month Frequency 844 Once every 1-3 months 521 Once every 4-6 months 229 Once every 7-11 months Once per year or less Never
The frequency distribution to the right shows the various levels of demand for a particular laptop computer sold by a store during the last 50 business days. Determine the average number of laptops sold per day. Number of Laptops Frquency 0 251 52 63 114 15 2
Ms. Garcia gave her students a biology test last week. Here are the test scores for each of the sixteen students. 83 79 78 82 77 81 Test scores 80 78 Send data to calculator Test scores 71.5 to 75.5 75.5 to 79.5 79.5 to 83.5 (a) Complete the grouped frequency distribution for the data. (Note that the class width is 4.) 83.5 to 87.5 87.5 to 91.5 86 X 90 85 74 84 74 73 89 Frequency S (b) Using the classes from part (a), draw the frequency polygon for the data. Note that you can add or remove classes from the figure. Label each class with its midpoint. Frequency 4+ 3+ 2+ L Test scores 0:00 00:0 X ? 10 A 8 Aa
Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe any patterns. Construct a frequency distribution of the data. Use the minimum data entry as the lower limit of the first class. Number of classes: 8 Class Frequency Data set: Finishing times (in seconds) of 20 male participants in a 5K race 1. D0 2. D- 3. 1717 1631 1575 1472 2300 4. O0 5. OO 6.- 1443 1250 1803 1597 1776 1957 1520 1826 1617 1304 1819 2018 2080 1578 1478 7. 8. Construct a frequency histogram of the data. OA. O B. OOOOO OOO
Use the following digits to construct a frequency distribution and then a histogram. Use classes of 0, 1, 2, 3 , 4 , 5 , 6, 7 , 8, 9 (note that each class only contains one value) 000000112333455555555555566888899
a. Construct a grouped frequency distribution, with percent frequencies. Copy the table to Microsoft Word and Describe the distribution. o. Suppose the lengths of time taken to find a full-time job by economics majors have a coefficient of variation of 24%. Is the variability in times for CS majors BIGGER/SMALLER/SAME? If different, by how much? c. Would a column chart be a more appropriate representation of unemployment duration than a histogram? Provide one reason. Time 10 3 12 21 15 8 4 2 16 8 8 14 33 7 24 11 42 15
The data represent the time, in minutes, spent reading a political blog in a day. Construct a frequency distribution using 5 classes. In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? Complete the table, starting with the lowest class limit. (Simplify your answers.) Class 0-0 Frequency Midpoint 150 187 Relative Frequency 10 7 19 0 1338 1 0 10 5 0 3180 11 Cumulative Frequency
QI For the data given : 84 80 81 62 84 74 67 90 44 40 80 96 64 71 74 41 75 78 57 52 65 44 54 67 70 92 76 82 85 80. Construct less then cumulative frequency table using k=6, the less then cumulative frequency result will be:
Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe any patterns. Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe any patterns. Number of classes: 8 Data set: Finishing times (in seconds) of 20 male participants in a 5K race 1717 1631 1575 1472 2296 1446 1251 1800 1596 1778 1955 1522 1824 1616 1303 1821 2018 2082 1579 1483
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