Hello! I believe she would have 58,000 at the end of her fourth year. Hope this helps. :)
Answer:
A sample of 1077 is required.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
The margin of error is of:

42% of freshmen do not visit their counselors regularly.
This means that 
98% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
How large of a sample size is required?
A sample size of n is required, and n is found when M = 0.035. So






Rounding up:
A sample of 1077 is required.
Answer:
a=3,b=5
Step-by-step explanation:

so as you got it:

Answer:
8. 12 in
9. 30 ft
10. 87.92 in
Step-by-step explanation:
Answer:
Step-by-step explanation: