The following data consists of the weights (in pounds) of 15 randomly selected women and the weights of 15 randomly selected men. Which of these choices display the correct back-to-back stemplot? $\begin{array}{llllll}
\text { Women: } & 128 & 150 & 118 & 166 & 142 \
& 122 & 137 & 110 & 175 & 152 \
& 145 & 126 & 139 & 111 & 170 \
\text { Men: } & 140 & 153 & 199 & 186 & 169 \
& 136 & 176 & 162 & 196 & 155 \
& 173 & 190 & 141 & 166 & 153
\end{array}$

Question

Quizplus · Accepted Answer

To create a back-to-back stemplot, the first step is to organize the data into a stem-and-leaf chart for each group. Then, the stems are placed in the middle and the leaves are mirrored on either side. In this case, the stems for women's weights range from 11 to 17, while men's weights range from 13 to 19.

Choice A has the stems for both groups centered, but the leaves for women's weights are on the left and the leaves for men's weights are on the right. This makes it difficult to compare the two distributions.

Choice B correctly places the stems in the middle and mirrors the leaves on either side. This allows for easy comparison between the two distributions.

The Following Data Consists of the Weights (In Pounds) of 15