Math 200 Spring 17 Raynor Homework: Session 7: Chapter 7 Homework Score: 0.5 of

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Math 200 Spring 17 Raynor Homework: Session 7: Chapter 7 Homework Score: 0.5 of 1 pt HW Score: 88.64%, 19.5 of 22 20 of 22 (20 complete) ® 7.4.17 EQueston Help Compute Pp) using the binomial probability formula Then determine whetherthe nommal distribution can be used to estimate this probabilty. If so, approximate P00using the normal distribution and compare the result with the exact probability. n 30, p 0.3, and X- 15 Px) 00106 (Round to four decimal places as needed.) Can the normal dstrbution be used to approximate this probabiny? A. Yes, the normal distribution can be used because np(1-p) 10. B No, the normal distribution cannot be used because np(1-p)2 10 *c. No, the normal distributon cannot be used because np(1- p) 10. D Yes, the normal distribution can be used because np(1-p 210 Approximate Ppo using the normal distribution use a standard normal distribution table. Select he comect chooe below and filin any answer boxes in your choice. Round to four decimal places as needed.) There is no solution Question is complete. Tap on the red indicators to see incorrect answers All parts showing

Explanation / Answer

ans=

P(X=15) = 30C15 (0.3)^15 (0.7)^15
= 155,117,520*(0.3)^15 (0.7)^15 = 0.010566

mean = np = 30x0.3 = 9

std. dev = sqrt npq = sqrt (30x0.3x0.7) = 2.509

Can't use the Normal because the value of the Normal at any point (such as 15) is equal to zero.

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