Mike and Kevin play football and each of them can score one goal with the probabilities of 0.9 and 0.6, respectively. Let X be the number of goals scored by two boys together. (A) Find the probability distribution of X. (B) Find the mean and the standard deviation of X.

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Chapter1: Combinatorial Analysis
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Mike and Kevin play football and each of them can score one goal with the probabilities
of 0.9 and 0.6, respectively. Let X be the number of goals scored by two boys together.
(A) Find the probability distribution of X.
(B) Find the mean and the standard deviation of X. 

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