Question

find the mean of this data set: 22, 19, 25, 21, 23

Explanation:

Step1: Sum up the data

$$22 + 19+25 + 21+23$$
$$=(22 + 19)+25+(21 + 23)$$
$$=41+25 + 44$$
$$=66+44$$
$$=110$$

Step2: Count the number of data

There are \(5\) data points.

Step3: Calculate the mean

The mean formula is \(\text{Mean}=\frac{\text{Sum of data}}{\text{Number of data}}\). So \(\text{Mean}=\frac{110}{5}=22\)

Answer:

\(22\)