Question

find the mean of the set of data. 112, 48, 19, 46, 86, 26, 80, 110, 9.
a 50
b 58.6
c 59.6
d 67

Explanation:

Step1: Calculate the sum of data

$$112 + 48+19 + 46+86 + 26+80 + 110+9=536$$

Step2: Calculate the number of data

There are \(9\) data points.

Step3: Calculate the mean

The formula for the mean \(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\), where \(n = 9\) and \(\sum_{i=1}^{n}x_{i}=536\). So \(\bar{x}=\frac{536}{9}\approx59.6\)

Answer:

C. \(59.6\)