Question 610388: Find the range, standard deviation and variance for the followinf sample data:
(I already have the range and will put the numbers in order)
1, 13, 15, 18, 21, 23, 30, 40, 42, 57, 77, 77, 84, 85, 91, 96
Answer by ewatrrr(24785)   (Show Source):
You can put this solution on YOUR website!
Hi,
Find the range, standard deviation and variance for the following sample data:
(I already have the range and will put the numbers in order)
1, 13, 15, 18, 21, 23, 30, 40, 42, 57, 77, 77, 84, 85, 91, 96
mean= 700/16 = 48.125
Variance = 1052.117
Standard deviation =  = 32.436
My recommendation would be to become very familiar with a TI calculator
or use Excel functions /Data Analysis Tool for Your statistical calculations
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x m diff squared
1 48.125 -47 2220.766
13 48.125 -35 1233.766
15 48.125 -33 1097.266
18 48.125 -30 907.516
21 48.125 -27 735.766
23 48.125 -25 631.266
30 48.125 -18 328.516
40 48.125 -8 66.016
42 48.125 -6 37.516
57 48.125 9 78.766
77 48.125 29 833.766
77 48.125 29 833.766
84 48.125 36 1287.016
85 48.125 37 1359.766
91 48.125 43 1838.266
96 48.125 48 2292.016
770 15781.750
48.125 15782/15 1052.117
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