Chapter SH, Problem 16.5E

To determine

Draw a back-to-back stem- and-leaf plot for given test scores of the two classes.

Explanation of Solution

Given:

The given test scores are

Class A $\to 9878857294816883$

Class B $\to 87917975908182100$

Calculation:

Stem- and-leaf plot $\to$ it is a table in which each data value is split into a stem (the first digit(s)) and a leaf (the last digit). In the decimal case, each leaf is a decimal.

Rearrange the set of data.

Class A $\to 6872788183859498$

Class B $\to 75798182879091100$

Hence the back-to-back stem- and-leaf plot for given set of data is given below.

Leaf (B)	Stem	Leaf (A)
$$ $\begin{array}{l}95\\ 721\\ 10\\ 0\end{array}$	$\begin{array}{l}6\\ 7\\ 8\\ 9\\ 10\end{array}$	$\begin{array}{l}8\\ 28\\ 135\\ 48\end{array}$