Answer:
I think it can be 3 . Hope it help you
D the terms are three times larger because 5 x 3 = 15
Part a)
The simple random sample of size n=36 is obtained from a population with

and

The sampling distribution of the sample means has a mean that is equal to mean of the population the sample has been drawn from.
Therefore the sampling distribution has a mean of

The standard error of the means becomes the standard deviation of the sampling distribution.

Part b) We want to find

We need to convert to z-score.

Part c)
We want to find

We convert to z-score and use the normal distribution table to find the corresponding area.

Part d)
We want to find :

We convert to z-scores and again use the standard normal distribution table.

Answer:
Your question is not correct.
Answer:
180°
Step-by-step explanation:
I think this is the answer
because the line is straight from the point ACE
see