Question 473581: What is the variance ?
What is the standard deviation of the scores?
10|0
9 |2,4,5
8 |1,2,7,9
7 |1,2,8
6 |1,2,8
5 |1,5
Answer by Edwin McCravy(20059)   (Show Source):
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10|0
9|2,4,5
8|1,2,7,9
7|1,2,8
6|1,2,8
5|1,5
In this stem-and-leaf diagram,
The first digit(s) is left of the
vertical line and the last digit is on
the right of it, so, putting the digits
together we have this set of data:
100,
92,94,95
81,82,87,89
71,72,78
61,62,68
51,55
Variance =  = 228.9166667
Standard deviation =  =15.12999229
Edwin
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