waecmaths question:
The scores of twenty students in a test are as follows 44, 47, 48, 49, 50, 51, 52, 53, 53, 54, 58, 59, 60, 61, 61, 63, 65, 67, 70, 73, 75. Find the third quartile
Option A:
62
Option B:
63
Option C:
64
Option D:
65
waecmaths solution:
$\begin{align} & \text{The numbers of terms }=20 \\ & \frac{3}{4}\times (n) \\ & \frac{3}{4}\times (20)=15th\text{ term} \\ & \text{The 15th term is 63} \\\end{align}$
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