Determine the mean, the variance and the standard deviation of the following discrete distribution. x ..... P(x)

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Determine the mean, the variance and the standard deviation of the following discrete distribution.
x ..... P(x)
0 ..... .103
1 ..... .118
2 ..... .246
3 ..... .229
4 ..... .138
5 ..... .094
6 ..... .071
7 ..... .001

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