The answer would be 7.42
Use desmos online calculator
Answer: add 3
Step-by-step explanation:
<span>In statistics, an outlier is an observation point that is distant from other observations.
Given the points
15, 23, 24, 26, 27 and 35
Notice, that the points 15 and 35 are distance from the other points and hence are outliers.
The mean of the observations including the outliers is given by

The mean of the observations without the outliers is given by

Therefore, </span>when <span>the outliers are removed,
the mean remains the same.</span>
So the first thing we need to do is set up an equation (using x to represent the number). Then, we'll solve it to get the answer.
Step 1: Translate the word problem into an equation
Word problem: The sum of nine and six-tenths and a number is thirteen and two-tenths.
Equation:
+ x = 
Step 2: Isolate x by subtracting
from each side
+ x -
=
- 
Step 3: The numbers on the left cancel out, leaving x alone
x = 
Step 4: Convert the answer to decimals
x = 3.6