begin array c c Marks amp 2 amp 3 amp 4 hline F... - JAMB Mathematics 2016 Question
(\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.
A
6
B
8
C
7
D
5
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Correct Option: C
(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
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