Answer:

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
is the estimate
z is the zscore that has a pvalue of
, also called the critical value.
The standard error is:

90% confidence level critical value
So
, z is the value of Z that has a pvalue of
, so
.
Estimate:
72 petty theft cases and finds 45 of these have gone unsolved.
So 
Standard error:

Answer:

Are you talking about area ?
It is the first one, the second one, and the fourth one.
Hope this helps ;)
Answer:
john has a greater ratio of shirts to pants
Step-by-step explanation:
jason- 5:2
table:
shirt :5 10 15 20 25 30 35 40 45
pants:2 4 6 8 10 12 14 16 18 20
john-7:3
table:
shirts:7 14 21 28 35 42 49 56 63
pants:3 6 9 1 2 15 18 21 24 27
You do pemdas and the answer should be 27