#23 part 1 I honestly have a hard time with this problem, It's asking A through C if you know the rest please help ??

Assume that hybridization experiments are conducted with peas having the property that for offspring, there is a 0.75 probability that a pea has green pods. Assume that the offspring peas are randomly selected in groups of 28. Complete parts (a) through (c) below. a. Find the mean and the standard deviation for the numbers of peas with green pods in the groups of 28 The value of the mean is p = peas. (Type an integer or a decimal. Do not round.) or urces IS SS rary