Question

question 7
a researcher is examining a data - set. she sums the total of all of the data points and then divides that value by the number of data points.
what statistic did the researcher calculate?
a the mean
b the mode
c the range
question 8
what is the main difference between a psychologist and a psychiatrist?
a a psychiatrist does not complete a medical degree, but a psychologist does.
b a psychiatrist can write prescriptions, but a psychologist cannot.
c a psychiatrist can only work at a college teaching and a psychologist can only work at a hospital providing therapy.

Explanation:

Question 7

The mean of a data - set is calculated by summing all data points and dividing by the number of data points.

The main difference between a psychiatrist and a psychologist is that a psychiatrist is a medical doctor and can write prescriptions for medications, while a psychologist typically cannot.

Answer:

A. the mean

Question 8