Question

find the midrange for the following group of data items. 22, 19, 18, 17, 23, 20, 16, 18

Explanation:

Step1: Find the maximum value

The maximum value in the data - set $\{22,19,18,17,23,20,16,18\}$ is $23$.

Step2: Find the minimum value

The minimum value in the data - set is $16$.

Step3: Calculate the mid - range

The formula for the mid - range is $\text{Mid - range}=\frac{\text{Max}+\text{Min}}{2}$. Substitute $\text{Max} = 23$ and $\text{Min}=16$ into the formula: $\frac{23 + 16}{2}=\frac{39}{2}=19.5$.

Answer:

$19.5$