Five males with an X-linked genetic disorder have one child each. The random variable x is the number of children among the five who inherit the X-linked genetic disorder. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied.		x	P(x)
	0	0.031
	1	0.159
	2	0.310
	3	0.310
	4	0.159
	5	0.031

Does the table show a probability distribution?

Find the mean of the random variable x. Find the standard deviation of the random variable x