When the outliner is removed, the mean will increase.
The standard deviation is a statistic that describes the degree of volatility or dispersion in a set of numerical values. While a high standard deviation suggests that the values are dispersed throughout a wider range, a low standard deviation suggests that the values tend to be close to the established mean.
An outlier number of 78 is included in the data used to reflect the class's 16 students' average test results.
The sum of the 16 test results is found to be 84 × 16 = 1344.
Outlier discovered = 78
New total = 1344 - 78 = 1266 if outlier is eliminated.
There were 15 entries without an outlier.
The new average is 1266 / 12, or 84.4.
We discover that the average of fresh data rises.
Additionally, the standard deviation would decrease if an outlier is removed.
Hence, the mean will increase.
Learn more about mean here:
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There is actually 2 ways to solve this, I will show you both.
The first is obvious, solve for x in the first one, and plug it into the 2nd one and get the answer
4x + 7 = 12
4x = 5
x = 
8() + 3
2 * 5 + 3
10 + 3
13
The 2nd option is to manipulate the 4x + 7 to be 8x + 3
4x + 7 = 12
start by moving the 7 over
4x = 5
multiply both sides by 2
8x = 10
and add 3 to both sides
8x + 3 = 13
None of the answers are correct ?
Answer:
b
Step-by-step explanation:
because volume is like filling and 3d everything else is area and perimeter
Y equals 4 hope i could help
