MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The frequency distribution below shows the amount of time the 50
randomly selected students spend playing video games daily. Complete
the table below. Show your solutions and answer the given questions.
Number of Frequency
minutes
(f)
Lower
boundaries
(LB)
Less than
cumulative
frequency (< cf)
151-180
4
121-150
9
91-120
16
61-90
10
31-60
9
1-30
2
i = 30
N=50
1. How many students belong to the upper quartile?
2. Find the 5th decile. Interpret the result.
3. Solve for P80. Interpret the result.
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Transcribed Image Text:The frequency distribution below shows the amount of time the 50 randomly selected students spend playing video games daily. Complete the table below. Show your solutions and answer the given questions. Number of Frequency minutes (f) Lower boundaries (LB) Less than cumulative frequency (< cf) 151-180 4 121-150 9 91-120 16 61-90 10 31-60 9 1-30 2 i = 30 N=50 1. How many students belong to the upper quartile? 2. Find the 5th decile. Interpret the result. 3. Solve for P80. Interpret the result.
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