Question

find the mean of this data set. 72, 61, 86, 64, 52

Explanation:

Step1: Calculate the sum of data

$$72 + 61+86 + 64+52=335$$

Step2: Count the number of data

There are \(n = 5\) data points.

Step3: Calculate the mean

The formula for the mean \(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\), so \(\bar{x}=\frac{335}{5}=67\)

Answer:

\(67\)