Example 2-2. Calculate the mean for the following frequency distribution :Class interval :0-88–1616-2424–3232-4040–48Frequency :871624157

Given data : Class Frequency 0 - 8 8 8 - 16 7 16 - 24 16 24 - 32 24 32 - 40 15 40 -…

Answered: Example 2-2. Calculate the mean for the…

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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1.[Short Answer] Construct (1) The frequency distribution (2) the frequency histgram (3)the frequency polygon (4)the relative frequency histgram for the following data set: the scores for 81 students. 114 114 108 133 115 127 109 133 121 106 134 131 91 121 94 96 95 95 76 103 113 99 74 81 107 58 81 90 85 70 96 67 66 93 81 92 98 58 88 44 80 93 76 43 60 70 54 58 43 35 40 49 73 51 27 45 57 79 65 65 60 47 32 56 60 32 59 51 44 41 50 41 42 44 22 28 33 35 35 21 25
(b) In the following frequency distribution of marks, one of the frequency is missing if the arithmetic mean of the distribution is 52 find the missing frequency. Marks 0–20 20-40 40–60 60–80 80–100 No. of students 8 19 14 9.
The data below shows time taken (in minutes) for 50 students to travel to their school from home.Time (minutes)23 16 16 17 1218 17 32 11 2711 16 22 18 2021 15 21 17 3432 14 18 21 2922 12 30 27 1627 20 21 14 2817 17 17 20 2613 20 27 26 1718 21 21 36 29 2. Draw a histogram based on your frequency distribution table.3. Give your comment about the distribution of the data based on your histogram.
A researcher gathered data on hours of video games played by school-aged children and young adults. She collected the following data: 17 17 13 10 16 11 17 11 14 6. 16 10 17 4 1 12 3 6. 17 6. 13 0. 15 12 11 17 16 3 17 17 8. 14 . 13 4 (a) Complete the frequency distribution for the data. Hours Frequency Relative Frequency 0-2 3-5 se 6-8 9-11 12-14 15-17 N earch
I. Below is the frequency distribution of the scores obtained by 50 students in Grade 10 Mathematics Test Complete the table. Class Interval Scores Frequency () Lower Boundaries (LB) Less than Cumulative Frequency(
A professor had students keep track of their social interactions for a week. The number of social interactions over the week is shown in the following grouped frequency distribution. Identify the lower limit of the tenth class Number of Social Interactions Frequency 45-49 9 50-54 13 55-59 17 60-64 20 65-69 18 70-74 10 75-79 3 80-84 8 85-89 0 90-94 2
Example 2-5. Obtain the median for the following frequency distribution: x : f : 6 7 15 1 2 3 4 5 8 10 11 16 20 -25
The frequency distribution table
For the following frequency distribution find the mode. Class 3-6 6-9 9-12 12-15 15-18 18-21 21-24 Frequency 2 10 23 21 12 3
22 The number of social interactions of ten minutes or longer over a one-week period for a group of college students is given in the following frequency table. (These interactions excluded family and work situations.) Find the mean, median, mode, and midrange for these data. Social interactions in a week: x 5 6 13 18 22 28 32 36 43 49 Number of college students: f 15 18 18 18 13 14 5 4 4 4 The mean is approximately ________. (Round to the nearest tenth as needed.)

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Example 2-2. Calculate the mean for the following frequency distribution : Class interval : 0-8 8–16 16-24 24-32 32-40 40-48 Freauency : 8 16 24 15 7