(c) i. How many terms in the GP 4, 3.6, 3.24,... are needed so that the sum exceeds 35? [5] ii. Find the sum of the terms in the GP 4, 3.6, 3.24,... [3]
iii.. How many different committees of 5 can be formed from 6 men and 4 women on which
there is at least one men and at least 2 women serve ? [5]
iv. Ramesh has 6 friends. In how many ways can he invite one or more of them at a dinner if
Lameck has to be there all the time. [5]

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.