Mean and standard deviation of binomial distributions?

Question

a softball player gets a hit 82% of her times at bat. waht is the mean number of hits made in 9 times at bat? logically, (9)(0.82)= 738. this is y=np for the standard o=rootnp(1-p). in our example, o=root9(.82)(1-0.82)=1.5256.

Answer 1

You are right!