be used as an approximation for the so, approximate P(x) and compare the result to the exact babilitiSCoropability. 60, p = 0.4, x = 20 0.15, x = 18 making a 15. n -80.P 16. n = "proximate 0.25, 0.05. 0.75, x =60 =30 17. n=40,p 50 100, p 18. n= 10 proximate 19. n = 75,P 20. n=85, p = 0.8, x =70 1 7.Assume imated using ormal curve Applying the Concepts NW 21. On-Time Flights According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90% of the time. Randomly select 150 flights and use the normal approximation to the binomial to pute the shipment, he area (a) approximate the probability that exactly 130 flights are on time. gas (b) approximate the probability that at least 130 flights are on time. (c) approximate the probability that fewer than 125 flights are on time. e in the (d) approximate the probability that between 125 and 135 flights, inclusive, are on time. 22. Morality In a recent poll, the Gallup Organization found that 45% of adult Americans believe that the overall state of moral values in the United States is poor. Suppose a survey of random sample of 500 adult Americans is conducted in which they rse d type ccur in are asked to disclose their feelings on the overall state of moral values in the United States. Use the normal approximation to the binomial to approximate the probability that (a) exactly 250 of those surveyed feel the state of morals is e the poor. (b) no more than 220 of those surveyed feel the state of morals is poor. (c) more than 250 of those surveyed feel the state of morals is poor.