the answer is D.
In only polling people in Arizona, you aren't taking a representative sample of the total population. You want to represent all *U.S.* adults.
What if people from Arizona spend proportionally more (or less) than the rest of the nation?
Answer:
Anna believes her Papa does not have confidence in her.
Explanation:her papa does have confidence in her
Matthew sells tickets for a school lottery at 3$/each. He wants to know how much profits he will make according to the number of tickets sold knowing that he starts with 2$.
Answer:
0.9726
Explanation:
The computation of the probability of a sample mean is shown below:

To find the probability first we have to determine the z score which is

= 1.92
Now probability is

= 0.9726
Hence, the probability of the sample mean is 0.9726
We simply applied the above formulas to determined the probability of a sample mean and the same is to be considered