Assume that x is a binomial random variable with n = 80 and p = 0.5. Use a normal approximation to find each of the following probabilities. a. P(x ≤33) b. P(37 ≤x≤47) c. P(x ≥ 36)

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A: Given data  P(E) = 0.22  P(F) = 0.28   P(E and F) =0.10p(E or F)=?

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