Let x be a binomial random variable with n 25, p 2 a Use Table 1 in Appendix I to calculate P(4 x 6) b Find and for the binomial probability distribution, and use the normal distribution to approximate the probability P(4 x 6) Note that this value is a good approximation to the exact value of P(4 x 6) even though np 5

Question: Let x be a binomial random variable with n = 25, p = .2. a. Use Table 1 in Appendix I to calculate P(4

Let x be a binomial random variable with n = 25, p = .2.
a. Use Table 1 in Appendix I to calculate P(4 ≤ x ≤ 6).
b. Find µ and σ for the binomial probability and use the normal to approximate the probability P(4 ≤ x ≤ 6). Note that this value is a good approximation to the exact value of P(4 ≤ x ≤ 6) even though np = 5.

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