5.79 Suppose x is a binomial random variable with p = .4 and NW n = 25. a. Would it be appropriate to approximate the prob- ability distribution of x with a normal distribution? Explain. b. Assuming that a normal distribution provides an ade- quate approximation to the distribution of x, what are the mean and variance of the approximating normal distribution? c. Use Table I of Appendix B or statistical software to find the exact value of P(x ≥9). d. Use the normal approximation to find P(x ≥ 9).

5.79 Suppose x is a binomial random variable with p = .4 and NW n = 25. a. Would it be appropriate to approximate the prob- ability distribution of x with a normal distribution? Explain. b. Assuming that a normal distribution provides an ade- quate approximation to the distribution of x, what are the mean and variance of the approximating normal distribution? c. Use Table I of Appendix B or statistical software to find the exact value of P(x ≥9). d. Use the normal approximation to find P(x ≥ 9).

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

See similar textbooks