Question

find the midrange for the following group of data items. 11, 8, 7, 6, 12, 9, 5, 7 the midrange is (type an integer or a decimal.)

Explanation:

Step1: Find the maximum and minimum values

The given data set is \(11, 8, 7, 6, 12, 9, 5, 7\).
The maximum value \(M = 12\).
The minimum value \(m=5\).

Step2: Calculate the mid - range

The formula for the mid - range is \(Mid - range=\frac{M + m}{2}\).
Substitute \(M = 12\) and \(m = 5\) into the formula: \(Mid - range=\frac{12 + 5}{2}=\frac{17}{2}=8.5\).

Answer:

\(8.5\)