In a survey 3 out of every 8 students chose vanilla ice cream as their favorite flavor. If 55 total students were surveyed, how many chose a flavor other than vanilla? Mrs. Martinez baked 3 dozen cookies for her class of 18 students. Using the same ratio, how many students can she serve with 40 cookies?

Lee's car travels 104 miles on 4 gallons of gasoline. How many gallons of gas will he need to travel 234 miles?

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.