Question

find the mean of this data set. 88, 95, 66, 74, 92, 86, 94

Explanation:

Step1: Find the sum of data

$88 + 95+66 + 74+92+86+94=605$

Step2: Count the number of data points

There are 7 data - points.

Step3: Calculate the mean

The mean $\bar{x}=\frac{605}{7}\approx86.43$

Answer:

$86.43$