Answer:

Step-by-step explanation:
Inc on (-inf,0)
Dec on (0,inf)
Answer:
A. No, the student is not right. The central limit theorem says nothing about the histogram of the sample values. It deals only with the distribution of the sample means.
Step-by-step explanation:
No, the student is not right. The central limit theorem says nothing about the histogram of the sample values. It deals only with the distribution of the sample means. The central limit theorem says that if we take a large sample (i.e., a sample of size n > 30) of any distribution with finite mean
and standard deviation
, then, the sample average is approximately normally distributed with mean
and variance
.
Answer:

Step-by-step explanation:
The given trigonometric equation is

We take the inverse cosine of both sides to obtain;


Group similar terms t obtain;


Answer:
0.1056
Step-by-step explanation:
okay so using a table of standard normal probabilities:
1.) look for 1.2 on the left column and .05 (which will give you .8944)
2.) this will give you the area before it so do
1- 0.8944
3.) You have your answer!