Atlantic Power and Light tracked daily power surges over the past 500 days. Results are reported in the relative frequency table below. Compute the variance for the number of daily power surges.
Surges (x) |
Proportion of Days P(x) |
0 |
.10 |
1 |
.38 |
2 |
.23 |
3 |
.19 |
4 |
.06 |
5 |
.04 |
a. 1.55
b. 1.05
c. 1.12
d. .86
e. 1.98
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