Using addition of variables, it is found that the mean of S is of 73 and the standard deviation is of 8.5.
<h3>What happens to the mean and the standard deviation when two variables are added?</h3>
- The mean is the sum of the means.
- The standard deviation is the square root of the sum of variances.
In this problem, for variables A and B, we have that:
Variable S is the sum of A and B, hence:
The mean of S is of 73 and the standard deviation is of 8.5.
More can be learned about addition of variables at brainly.com/question/26156502
Answer:
A. Part to whole
You are comparing the vanilla ice cream (part of the whole) to the total number of ice cream cups (the whole), so therefore you have a part to whole comparison.
I hope I could help :)
Answer:
![\sqrt[3]{7x}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B7x%7D)
Step-by-step explanation:
Given
Required
The radical statement
Cube root is represented as:
![\sqrt[3]{}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%7D)
Considering , the expression is:
Answer:
triangle with two equal sides.The angles opposite the equal sides are also equal.
Step-by-step explanation:
Given:
The inequality is
To find:
The mistake in the given solution and correct it.
Solution:
We have,
Isolating variable on one side, we get
On dividing both sides by -3, we get
Because if an inequality is multiplied or divided by a negative number, then the sign of inequality must be changed.
Therefore, there is a mistake in last step because the sign of inequality remains same after diving it by -3 and the correct solution is .
