Answer:.40 cents
Step-by-step explanation: divide the total cost by the amount of items you have.
Answer:
30
Step-by-step explanation:
You do 271 ÷9
= 30.11111111
The answer is your whole number (30)
Answer:
what are the color of the marbles that are not red?
Step-by-step explanation:
Answer:
A sample size of 1031 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:

37% 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
.
You would like to be 98% confident that your estimate is within 3.5% of the true population proportion. How large of a sample size is required?
A sample size of n is required.
n is found when M = 0.035. So






Rounding up:
A sample size of 1031 is required.