Question

what is the mean of the data set? 17, 24, 26, 13 4 13 20 80

Explanation:

Step1: Find the sum of data

$$17 + 24+26 + 13$$
$$=(17 + 13)+(24 + 26)$$
$$=30+50$$
$$=80$$

Step2: Count the number of data

There are \(4\) data points (\(17\), \(24\), \(26\), \(13\)).

Step3: Calculate the mean

The formula for the mean \(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\), where \(\sum_{i = 1}^{n}x_{i}\) is the sum of data and \(n\) is the number of data.
So, \(\bar{x}=\frac{80}{4}=20\)

Answer:

20