The margin of error for a sample proportion is given by

where:

is the z score associated with the confidence level, p is the sample prortion and n is the sample size.
We assume a confidence level of 95%, then
p = 52% = 0.52 and n = 2251
Therefore, margin of error =

The the interval that is likely to contain the true population proportion is between 49.9% and 54.1%.
16 questions right = 80%
So that means Jen missed 4 questions.
Hope this helped.
First you arrange them by least to greatest then because u would have 2 numbers as a median you add them then divide by 2
The simplified fraction is 62/7
Answer:
32x+32
Step-by-step explanation:
In the distributive property, you have to multiply the thing outside the parenthesis to each term in the parenthesis. -4*-8x=32x and -4*-8=32, so the answer would be 32x+32