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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Question

Fifty-one (51) statistics students were asked how much sleep they get per school night (rounded to the nearest hour). The results are as shown in the following frequency distribution table. Which percentile is in the 26th position?

State your result/answer as value with exactly two digits after the decimal.

 

Values

Frequency

Cumulative
Frequency

4

2

2

5

5

7

6

7

14

7

11

25

8

16

41

9

6

47

10

4

51

 

 

 

   

25.00
   

50.00
   

26.00
   

50.98
   

25.50
Expert Solution
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Step 1

In this problem, we have a cumulative frequency so we need to find the percentile is in 26th position is find using this following formula:

We need to find 50% percentile is given by,

P50=(50(n+1)100)th

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