The table shows the number of each type of ticket sold and the total sales amount for three nights of the school play. If on Thursday night they sold 110 orchestra tickets, 20 mezzanine tickets, and 55 balcony tickets, how much was the total sales for Thursday night? friday sold 200o + 30m + 40b= $1470
saturday sold 250o + 60m + 50b= $1950
sunday sold 150o + 30m + 0b = $1050

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120 lb and 161 lb. the new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb. a)if a pilot is randomly selected, find the probability that his weight is between 120 lb and 161 lb.the probability is approximately? b. if 36 different pilots are randomly selected, find the probability that their mean weight is between 120 lb and 161 lb. the probability is approximately? c. when redesigning the ejection seat, which probability is more relevant? . part (b) because the seat performance for a single pilot is more important. b. part (b) because the seat performance for a sample of pilots is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (a) because the seat performance for a single pilot is more important.