Question

How do you solve this?

Answer 1

this is quite an easy problem.

Explanation:

The problem appears to be asking for the class with the greatest variability of test 1, which merely means that you are looking for the graph that has the most distributed test scores. The graph that shows the largest difference in each test score will be your answer.

Answer 2

B. The standard deviation is he square root of variance. The larger the standard deviation the more variation