4. The following table gives the heights of 350 men. Calculate the mean height of thegroup.Height in centimetresNumber of persons15911611639.165481671311691021714017317

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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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Given below are the ages of motorcyclists at the time they were fatally injured in traffic accidents (based on data from the U.S. Department of Transportation). 18 38 23 14 18 34 16 42 28 24 40 20 23 34 37 21 32 25 17 28 33 25 23 19 51 18 29 Looking at the histogram for the data, what is the height (frequency) of the 4th bar on the histogram? Given below are the ages of motorcyclists at the time they were fatally injured in traffic accidents (based on data from the U.S. Department of Transportation). 18 38 23 14 18 34 16 42 28 24 40 20 23 34 37 21 32 25 17 28 33 25 23 19 51 18 29 Looking at the histogram for the data, what is the height (frequency) of the 4th bar on the histogram? 4 7 5 6 8
The following chart provides data that is widespread. Use this data to answer questions 11 through 14. Ages: 25 41 33 42 28 31 35 41 22 0. 27 23 34 40 38 38 28 25
The following table gives the heights of 350 men. Calculate the mean height of the group. Height in centimetres Number of persons f 159 161 163 165 167 169 171 173 1 9 48 131 102 40 17
3. Displayed below is a histogram of weights of all men and women who subscribe to a workout program at the workout center here at UW-Platteville. a. Based on the graph, would you expect the mean to be (circle one): i. higher than the median ii. about the same as the median iii. lower than the median b. Explain your answer. Frequency 30 25 20 10 0 120 160 Histogram of All Weights 240 200 Weights in pounds 280 320
a.) The First Quartile b.) The Third Quartile c.) Draw a box plot for the data
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3. The number of goals scored by Wayne Gretzky was recorded for seasons 1978 – 1999. (Please note the data set has been ordered from smallest to the largest for your convenience). 5, 9, 11, 16, 23, 23, 31, 38, 40, 40, 41, 46, 51, 52, 54, 55, 62, 71, 73, 87, 92 A. Construct a stem-and-leaf display for the data and describe the shape of the distribution (symmetric, skewed left, skewed right, bell-shaped, etc., any obvious outliers). B. What is the fraction of the data that is less than or equal to 31? C. Given that Ex, = 920 and Ex = 52 436 find the mean and standard deviation. D. Find the (i) median, (ii) Q1, (iii)Q:, (iv) the interquartile range (IQR), (v) the lower and upper fences. E. Construct a Box-plot for the data. What are your conclusions about the shape of the distribution? Compare with the results in Part A. F. Would the mean or the median be the most suitable measure to use to represent the central location of this distribution? Give reasons for your answer.
1. Complete the following in regard to the Armspan and Height factors in the data set: Armspan 143.0 184.5 163.0 161.5 172.0 182.0 172.5 145.0 180.0 179.0 180.0 160.0 166.5 157.5 156.0 184.0 187.0 163.0 174.0 154.0 162.0 169.0 164.5 157.5 165.0 165.0 153.0 151.5 158.0 169.0 168.0 156.0 170.0 189.5 173.0 183.0 177.5 168.0 188.0 164.0 183.0 169.5 176.5 167.0 153.0 175.0 170.0 173.5 172.0 160.0 165.5 153.0 157.5 160.0 171.0 180.0 154.0 173.0 165.0 175.5 160.0 170.0 178.0 156.0 157.0 179.5 160.0 177.0 191.5 165.0 156.0 172.5 180.0 183.0 161.5 162.5 170.0 165.0 172.0 172.0 186.0 172.0 176.0 167.0 182.0 189.0 163.5 153.5 174.0 165.0 155.5 157.0 Height 145.0 180.0 161.5 160.0 170.0 183.0 172.5 142.0 180.0 172.5 182.5 159.0 168.0 159.0 160.0 179.0 189.0 162.5 181.0…
Consider the following Venn diagram that summarizes the data from 50 people. How many people own just one pet? Birds 10 10 1. 2. 2. Cats Dogs 32 22 25 20 cer
Given the following data: 7, 11, 19, 8, 9, 20, 17, and 16. Identify the range 7. 8.5 O 13.5 O 9.5 13
2- Use the frequency histogram to: a. Determine the number of classes. b. Estimate the frequency of the class with the least frequency. c. Estimate the frequency of the class with the greatest frequency. d. Determine the class width. 12 10 8 4 6.75 9.75 12.75 15.75 18.75 Depth (cm) 00 6. Frequency

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:4. The following table gives the heights of 350 men. Calculate the mean height of the group. Number of persons Height in centimetres 159 161 9. 163 165 48 167 131 169 102 171 40 173 17