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Let X be a binomial random variable with n = 150 and p = 0.4. Use...

Let X be a binomial random variable with n = 150 and p = 0.4. Use the normal approximation to find the following. Do not solve this as a binomial distribution problem. You must set up and use the normal approximation to receive credit. Express the final answer using 4 decimal places.

a) P(48 ≤ X ≤ 66)

b) P(X > 69)

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