Suppose X = number of direct injuries occurring in a fire incident. Its PMF is given by x 0 1 2 3 4 5 6 7 f(x) 0.08 0.08 0.08 0.08 0.09 0.14 0.09 0.14 0.18 0.18 0.16 0.09 0.06 Determine the mean and variance of the number of direct injuries occurring in a fire incident. 8 0.06

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Suppose X = number of direct injuries occurring in a fire incident. Its PMF is given by
x
0
1
2
3
4
5
6
7
f(x) 0.08 0.08 0.09 0.14
0.18
0.18
0.16 0.09
0.06
Determine the mean and variance of the number of direct injuries occurring in a fire incident.
8
0.06
Transcribed Image Text:Suppose X = number of direct injuries occurring in a fire incident. Its PMF is given by x 0 1 2 3 4 5 6 7 f(x) 0.08 0.08 0.09 0.14 0.18 0.18 0.16 0.09 0.06 Determine the mean and variance of the number of direct injuries occurring in a fire incident. 8 0.06
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