(begin{array}{c|c}
Marks & 2 & 3 & 4 \
hline
Frequency & 4 & 4 & y
end{array})
The table above shows the frequency distribution of marks obtained by a group of students. If the total mark is 48, find the value of y.
Marks & 2 & 3 & 4 \
hline
Frequency & 4 & 4 & y
end{array})
The table above shows the frequency distribution of marks obtained by a group of students. If the total mark is 48, find the value of y.
-
A.
6 -
B.
8 -
C.
7 -
D.
5
Correct Answer: Option C
Explanation
(2 x 4) + (3 x 4) + (4 x y) = 48
8 + 12 + 4y = 48
4y = 48 – 20
(frac{4y}{4}) = (frac{28}{4})
y = 7
There is an explanation video available below.