Question

Score Frequency

1| 0
2| 3
3| 4
4| 16
5| 22

Scores on an AP Exam at a local high school are recorded in the table. What was the average score?
A) 0.234
B) 3
C) 3.5
D) 4.266

(7th grade pretest)

Answer 1

Scores on an AP Exam at a local high school are recorded in the table. What was the average score?

Answer: D) 4.266 is correct

Step-by-step explanation:

We are given the below frequency table:

Score Frequency

1 | 0

2 | 3

3 | 4

4 | 16

5 | 22

Let's denote the score by
`x` and frequency by
`f`.

The average formula is:

`Average=(\sum fx)/(\sum f)`

`=((1*0) + (2*3)+(3*4) +(4*16) + (5*22))/(0+3+4+16+22)`

`=(0+6+12+64+110)/(45)`

`=(192)/(45)=4.267`

Therefore, the average score was 4.267

Hence the option D) 4.266