Question

find the mean for the following group of data items. 5, 6, 3, 9, 1, 4, 7, 6

Explanation:

Step1: Sum the data items

$$5 + 6+3 + 9+1 + 4+7 + 6=41$$

Step2: Count the number of data items

There are \(n = 8\) data items.

Step3: Calculate the mean

The mean formula is \(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\). Substituting the values, we get \(\bar{x}=\frac{41}{8}=5.125\)

Answer:

\(5.125\)