Question

find the mean for the following group of data items. 5, 2, 9, 8, 3, 4, 4, 9

Explanation:

Step1: Calculate sum of data

$5 + 2+9 + 8+3 + 4+4 + 9=44$

Step2: Count number of data items

There are 8 data items.

Step3: Calculate the mean

The mean $\bar{x}=\frac{44}{8} = 5.5$

Answer:

$5.5$