## Math 336 Assume That The Mean Hourly Cost To Operate

25. assume that the mean hourly cost to operate a commercial airplane follo0ws the normal distribution with a mean of \$2,100 per hour and a standard deviation of \$250. what is the operating cost for the lowest 3 percent of the airplanes? (show calculations)31. assume a bionomial proability distribution with n=50 and pi= . 25 compute the following (show the calculation)a) the mean and the standard deviation of the random variableb) the probability that X is 15 or morec) the probability that x is 10 or less

## MATH 336 assume that the mean hourly cost to operate

Question
25. assume that the mean hourly cost to operate a commercial airplane follo0ws the normal distribution with a mean of \$2,100 per hour and a standard deviation of \$250. what is the operating cost for the lowest 3 percent of the airplanes? (show calculations)

31. assume a bionomial proability distribution with n=50 and pi= .25 compute the following (show the calculation)

a) the mean and the standard deviation of the random variable

b) the probability that X is 15 or more

c) the probability that x is 10 or less