Find and interpret the mean of the random varibale obtain

The random variable X is the crew size of a randomly selected shuttle mission. Its probability distribution is shown below.

X's: 2 3 4 5 6 7 8

P(X=x): 0.035 .011 .068 .325 .235 .288 .038

A. Find and interpret the mean of the random varibale

B. Obtain the standard deviation of the random variable.

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Find and interpret the mean of the random varibale obtain : the random variable x is the crew size of a randomly selected shuttle mission. its probability distribution is shown

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