Chapter 11.2, Problem 19WE

To determine

To calculate:

The arithmetic mean of the following each pair:

  $-3,7$

Answer to Problem 19WE

The arithmetic mean is $2$

Explanation of Solution

Given information:

  $-3,7$

Formula used:

The arithmetic mean is given by the following expression:

  $m=\frac{{\displaystyle \sum _{n=1}^k{x}_n}}{k}$

Calculation:

The arithmetic mean is given by the following expression:

  $m=\frac{{\displaystyle \sum _{n=1}^k{x}_n}}{k}$

Now, put the given data:

  $\begin{array}{l}m=\frac{-3+7}{2}\\ m=\frac{4}{2}\\ m=2\end{array}$