Answer:
D. 2,2
Step-by-step explanation:
The midpoint just means the point in the middle of the line, and if you count inwards from each of the points, you'll find that D is the midpoint.
Given:
The frequency distribution table.
To find:
The mean average score on a test.
Solution:
The frequency distribution table is

x a xa
y b yb
z c zc
Sum a+b+c xa+yb+zc
Now, the mean average score on the test is


Therefore, the mean average score on the test is
.
Answer: 1
Step-by-step explanation: it only goes into 14 once because 8 • 2 =16