Below are the scores of group of students in a music test
(begin{array}{c|c}scores & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 \ hline text{No, of students} & 3 & 6 & 10 & 8 & 6 & 5 & 2 & 4 & 12end{array})
If CF(x) is the number of students with scores less than or equal to x, find CF(6)
(begin{array}{c|c}scores & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 \ hline text{No, of students} & 3 & 6 & 10 & 8 & 6 & 5 & 2 & 4 & 12end{array})
If CF(x) is the number of students with scores less than or equal to x, find CF(6)
-
A.
40 -
B.
38 -
C.
33 -
D.
5
Correct Answer: Option B
Explanation
CF (6) = 5 + 6 + 8 + 10 + 6 + 3
= 38