Question

Find the mean of the data set without the outlier.

Then, find the mean of the data set with the outlier.

Answer 1

The median is 8.1

Step-by-step explanation:

You add up all the numbers and divide it by how much numbers there are.

1) Add. 1 + 7+ 16 + 18 + 40 = 81

2) Count. There are 10 numbers.

3) Divide 81/10

4) 8.1

The median is 8.1

Answer 2

Ok so the mean is the “average”

So, to find the average you add all the numbers and then divide by how many numbers there are.

The outlier is one obviously

WITHOUT THE OUTLIER=9 because
7+8+8+9+9+10+10+10+10=81
81/9=9

WITH THE OUTLIER=8.2 because

7+8+8+9+9+10+10+10+10+1=82
82/10=8.2