Three coins are tossed let x be the number of heads

Assignment Help Basic Statistics

Reference no: EM13644890

1. Three coins are tossed. Let X be the number of heads obtained. The probability distribution for X if given: X 0 1 2 3

P(X=x) 1/8 3/8 3/8 1/8

Find mean and standard deviation of X by hand.

Reference no: EM13644890

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