2. What is the constant rate of change in this situation in price per gallon?
Gallons
Total Cost
0
0
a. $2.25 per gallon
b. $0.75 per gallon
C. $3.00 per gallon
d. $0.25 per gallon
3
2.25
5
3.75
10
7.5
A
B.
Ос
D

Nielsen media research wants to estimate the mean amount of time (in minutes) that full- time college students spend watching television each weekday. find the sample size necessary to estimate the mean with a 15-minute margin of error. assume that a 95% confidence level is desired. also assume that the population standard deviation is known to be 112.2 minutes.