The table above shows the frequency of children age x years in a hospital
x
1
2
3
4
5
6
7
8
y
3
4
5
6
7
6
5
4
How many children are in the hospital
Attached Figure / Diagram
A
36
B
40
C
44
D
50
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
The total number of students is ∑ f = 3 + 4 + 5 + 6 + 7 + 6 + 5 + 4
= 40
Source: Myschool Past Questions Archive (Record #47573)