5.51 Find the mean and standard deviation

1. (a) Suppose that X has the B(8, 0.3) distribution. Compute the mean and standard deviation of X.

2. (b) Suppose that X has the B(8, 0.7) distribution. Compute the mean and standard deviation of X.

3. (c) Explain the relationship between your answers to parts (a) and (b) of this exercise.