Question
0-0.9 42 1.0-1.9 19 2.0-2.9 16 3.0-3.9 20 4.0-4.9 11 5.0-5.9 15 (a) Approximate the variance of the times. Round the answer to at least
0-0.9 42
1.0-1.9 19
2.0-2.9 16
3.0-3.9 20
4.0-4.9 11
5.0-5.9 15
(a) Approximate the variance of the times. Round the answer to at least two decimal places.
The variance is
.
(b) Approximate the standard deviation of the times. Round the answer to at least two decimal places.
.
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Elementary Algebra
Authors: Tom Carson, Bill E Jordan
4th Edition
0321916042, 9780321916044
