Answer:
8.2
Step-by-step explanation:
Let's look at our data set:
8, 10, 11, 11, 8, 9, 7, 7, 7, 7, 7, 7, 8.
First, to find the mean, you must order it from least to greatest.
7, 7, 7, 7, 7, 7, 8, 8, 8, 9, 10, 11, 11...
Then, you will have to add everything up, I do it in a standard algorithm.
7+7+ 7 + 7 + 7 + 7 + 8 + 8 + 8 + 9 + 10 + 11 + 11
Your answer will be : 107
Since there are 13 numbers, you need to divide 107 by 13...
Your answer should be...
8.2307692...
Rounded, your answer will be 8.2
Therefore, the mean of this data set is 8.2
-kiniwih426
