Jeremiah is tracking how many customers he can assist in an afternoon. he listed the number of customers assisted per hour in the following table:
hour (x) number of customers
f(x)
1 2
2 4
3 6
determine if these data represent a linear function or an exponential function, and give the common difference or ratio.
a. this is an exponential function because there is a common ratio of 2.
b. this is a linear function because there is a common difference of 4.
c. this is an exponential function because there is a common ratio of 4.
d. this is a linear function because there is a common difference of 2.

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.