# Question

For a binomial probability distribution, n = 80 and p = .50. Let x be the number of successes in 80 trials.

a. Find the mean and standard deviation of this binomial distribution.

b. Find P(x > 42) using the normal approximation.

c. Find P(41 < x < 48) using the normal approximation.

a. Find the mean and standard deviation of this binomial distribution.

b. Find P(x > 42) using the normal approximation.

c. Find P(41 < x < 48) using the normal approximation.

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