I am trying to find the mean and standard deviation of a binomial distribution.

A basket ball player has the following probability for success in two shot free throws.

P(0) is 0.16,

P(1) is 0.48

P (2) is 0.36

I need to find the mean and std deviation.

I get the mean correctly as 1.2, but not able to get the std. deviation of the given answer of 0.69. Requesting guidance