Step-by-step explanation:
a could be 3580 X 1.25^n
b could be 6992.19
dk c
Answer:
d.
Step-by-step explanation:

Answer:
Step-by-step explanation:
5y-7y=-2y=-2(3)=-6
Answer:
752.95
Step-by-step explanation:
Data provided in the question
The standard deviation of population = 210
The Margin of error = 15
The confidence level is 75%, so the z value is 1.96
Now the required sample size is

= 752.95
Hence, the number of college students spends on the internet each month is 752.95
Simply we considered the above values so that the n could come