Question 27 of 55 Which statement about 9(2 + x) is true?
A. 9(2+ x) is a quotient.
B. 9(2 + x) is a product of two factors.
C. 9(2+ x) has two variables.
OD. 9(2+ x) is a product of three factors.

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.