Question

find the midrange for the following group of data items. 1.3, 5.3, 7.3, 2.2, 5.3, 5.3, 3.1, 6.5, 3.6, 1.4, 1.4

Explanation:

Step1: Find the maximum value

The maximum value in the data - set \(1.3,5.3,7.3,2.2,5.3,5.3,3.1,6.5,3.6,1.4,1.4\) is \(7.3\).

Step2: Find the minimum value

The minimum value in the data - set is \(1.3\).

Step3: Calculate the mid - range

The formula for the mid - range is \(\text{Mid - range}=\frac{\text{Max}+\text{Min}}{2}\). Substitute \(\text{Max} = 7.3\) and \(\text{Min}=1.3\) into the formula: \(\frac{7.3 + 1.3}{2}=\frac{8.6}{2}=4.3\).

Answer:

\(4.3\)