Question

Given the following data, find the following: Round your answers to 2 decimal places as needed...

Given the following data, find the following:
Round your answers to 2 decimal places as needed

97 89
19 77
50 81
53 62
80 70
52 55
3 85

Mean=

Median=

Range =

Sample Standard Deviation=

Math   Statistics-And-Probability   
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Answer #1

Ans:

Sorted data:

3 70
19 77
50 80
52 81
53 85
55 89
62 97

1)sum=873

n=14

mean=873/14=62.36

2)median=(62+70)/2=66

3)Range=maximum-minium=97-3=94

4)sample standard deviation

xi (xi-62.357)^2
1 97 1200.137
2 19 1879.829
3 50 152.695
4 53 87.553
5 80 311.275
6 52 107.267
7 3 3523.253
8 89 709.849
9 77 214.417
10 81 347.561
11 62 0.127
12 70 58.415
13 55 54.125
14 85 512.705
Total= 873 9159.214
mean= 62.357 26.543 std. dev.

sample standard deviation=sqrt(9159.214/13)=26.54

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