Considering that 30 out of 120 clients are willing to pay at least $95, we use the it's concept and find that there is a 0.25 = 25% probability that a customer is willing to pay at least $95.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
In this problem, we suppose that 30 out of 120 clients are willing to pay at least $95, hence:

There is a 0.25 = 25% probability that a customer is willing to pay at least $95.
More can be learned about the probability concept at brainly.com/question/15536019
Answer:
The standard deviation of the sample mean differences is _5.23_
Step-by-step explanation:
We have a sample of a population A and a sample of a population B.
For the sample of population A, the standard deviation
is

The sample size
is:
.
For the sample of population B, the standard deviation
is

The sample size
is:
.
Then the standard deviation for the difference of means has the following form:

Finally

Completing the function process square solving the quadratic circle 363(y)
answer
B)0.66
Step-by-step explanation:
0.66 value of the correlation coefficient r of the data set