Anumber cube is rolled 450 times. the number 3 comes up 67 times.

what is the experimental probability of rolling a 3? write your answer as a fraction in simplest form.

ok so i did this if i am right?

67/3 = 22.3
450/3 = 150

22.3/150 = ?
or
22/150 =

this where i get lost. i need a fraction. @whpalmer4 or @taz_kapadia or @tcarroll010

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.