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: Find sum of data

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

Step2: Count number of data points

There are 7 data - points.

Step3: Calculate the mean

The mean $\bar{x}=\frac{28}{7}=4$

Answer:

A. 4.0