Question

question 10 of 14
what is the mean of this data set? if necessary, round your answer to the nearest tenth.
12, 16, 22, 23, 34, 44, 46, 47, 48, 64, 67, 73, 83, 88, 89
a. 50.4
b. 55.7
c. 45
d. 60

Explanation:

Step1: Calculate sum of data

$12 + 16+22 + 23+34 + 44+46 + 47+48 + 64+67 + 73+83 + 88+89=755$

Step2: Determine number of data points

There are 15 data - points.

Step3: Calculate the mean

The mean $\bar{x}=\frac{755}{15}\approx50.333\approx50.4$

Answer:

A. 50.4