socl/behv sciences

use the book from the link below to answer the questions on the worksheet for the chapter states. 

https://z-lib.is/book/204221

Use these instructions to answer some of the questions. 

For the Standard Deviation I wanted you to use the SAMPLE COMPUTATION FORMULA…………and please show all work, it’s Table 4.4 in the Textbook it’s set up like this

X X2

1 1

2 4

3 9

4 16

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Then SS = X2 – (X x X)/n

or

SS = 30 – (10 x 10)/4 = 30 – (100/4) = 30 – 25 = 5

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Variance = 5/(n-1) = 5/(4-1) = 5/3 = 1.67

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Standard Deviation = square root of 1.67 = 1.29

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Then the Group Frequency Table is (I’ll put in the class intervals I want to use, then you can fill out the rest with the numbers on the text

Class Tally Frequency Relative Frequency Cumulative Frequency Cumulative Percent

50 – 54

45 – 49

40 – 44

35 – 39

30 – 34

25 – 29

20 – 24

15 – 19

10 -14

  5 – 9

  0 – 4

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then don’t forget your Graphs……..A Bar Graph and an A Stem and Leaf Graph