Answer:
A
Step-by-step explanation:
Lets dissect the dot plot for information:
1 point = 1 time
2 points = 2 times
3 points = 3 times
7 points = 1 time
8 points = 3 times
9 points = 1 time
10 points = 1 time
Total number of times he gets extra credit points is:
1 + 2 + 3 + 1 + 3 + 1 + 1 = 12 times
Out of which "3" was 3 times
and "7" was 1 times
That would make it
3 + 1 = 4 times
So, out of 12 times in total he gets extra credit points, 4 times is "3" or "7". In percentage, that will be:
4/12 = 0.3333
Multiplying 0.3333 * 100 = 33.33%
Answer choice A
