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The number of electrical outages in a city varies from day to day. Assume that the number of electrical outages (x) in the city has the following probability distribution.

x	f(x)
0	0.80
1	0.15
2	0.04
3	0.01

The mean and the standard deviation for the number of electrical outages (respectively) are

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2.6 and 5.77

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0.26 and 0.577

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3 and 0.01

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0 and 0.8

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