The test scores of 40 students are listed below. $\begin{array} { l l l l l l l l l l } 30 & 35 & 43 & 44 & 47 & 48 & 54 & 55 & 56 & 57 \end{array}$
$\begin{array} { l l l l l l l l l l } 59 & 62 & 63 & 65 & 66 & 68 & 69 & 69 & 71 & 72 \end{array}$
$\begin{array} { l l l l l l l l l l l } 72 & 73 & 74 & 76 & 77 & 77 & 78 & 79 & 80 & 81 \end{array}$
$\begin{array} { l l l l l l l l l l } 81 & 82 & 83 & 85 & 89 & 92 & 93 & 94 & 97 & 98 \end{array}$
A) $73.5$
B) $22.4$
C) 74
D) 73

Question

Quizplus · Accepted Answer

The median of a set of numbers is the middle value when the numbers are arranged in order. Since there are 40 scores, the median will be the average of the 20th and 21st scores. The 20th score is 69, and the 21st score is 72. The average of 69 and 72 is $ \frac{69 + 72}{2} = 70.5 $, which is not listed among the options provided. Therefore, it seems there might have been a misunderstanding in the calculation or the interpretation of the options. Given the options, none directly match the calculated median of 70.5.

The Test Scores of 40 Students Are Listed Below 30354344474854555657\begin{array} { l l l l l l l l l l } 30 & 35 & 43 & 44 & 47 & 48 & 54 & 55 & 56 & 57 \end{array}30​35​43​44​47​48​54​55​56​57​

The Test Scores of 40 Students Are Listed Below $\begin{array} { l l l l l l l l l l } 30 & 35 & 43 & 44 & 47 & 48 & 54 & 55 & 56 & 57 \end{array}$