Frequency Table-:   Class Interval Frequency 20-25 5 25-30 5 30-35 7 35-40 10 40-45 5 45-50 5 50-55 2 Total 39

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Frequency Table-:

 

Class Interval

Frequency

20-25

5

25-30

5

30-35

7

35-40

10

40-45

5

45-50

5

50-55

2

Total

39

 

Using the table created above,

  1. Calculate the sample mean

iii. Calculate the sample variance

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