78 Assume that x is a binomial random variable with n = 1,000 and p = .50.
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78 Assume that x is a binomial random variable with n = 1,000 and p = .50. Find each of the following probabilities:
a. P(x 7 500)
b. P(490 … x 6 500)
c. P(x 7 550)
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