Answer:
A. No; Seraphin's first statement is not correct. Because the a-value is positive, the graph should be stretched horizontally by a factor of 6.
Step-by-step explanation:
Answer:
Answer is D on edge
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
If there are 2 blue chairs and 5 red chairs there are 7 chairs total.
Answer:

Option d.
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:

79 percent of adults age 18 years and older in the United States use the Internet.
This means that 
98% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
Which of the following should be used to find the sample size (n) needed?
We have to find n for which 
So the equation is:


Option d.