Question

what is the mean of the following set of data? {1, 4, 7, 5, 3, 3, 5} a. 4.0 b. 4.5 c. 3.5 d. 4.2 please select the best answer from the choices provided

Explanation:

Step1: Calculate the sum of data

$$1 + 4+7 + 5+3 + 3+5=28$$

Step2: Count the number of data points

There are \(n = 7\) data points.

Step3: Calculate the mean

The mean formula is \(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\), so \(\bar{x}=\frac{28}{7}=4\)

Answer:

A. 4.0