The following data represent the total price, in dollars, of 20 randomly-selected gasoline purchases at a certain convenience store.
$\begin{array}{llllllllll}
\hline 31.87 & 41.83 & 24.81 & 29.28 & 46.20 & 37.55 & 32.13 & 33.27 & 49.22 & 30.25 \
40.76 & 38.68 & 25.97 & 23.11 & 31.59 & 41.16 & 47.31 & 43.15 & 37.85 & 47.33 \
\hline
\end{array}$
Find the median price for these purchases.
A) $37.70
B) $26.11
C) $60.14
D) $36.67

Question

Quizplus · Accepted Answer

To find the median, first, the data must be arranged in ascending order. After arranging, since there are 20 data points (an even number), the median is the average of the 10th and 11th values. In the ordered list, these values are $37.55 and $37.85, so the median is $(37.55 + 37.85)/2 = $37.70.

The Following Data Represent the Total Price, in Dollars, of 20