Answer:
76.8
Step-by-step explanation:
Using the proportion
→ Percent is out of 100
=
( cross- multiply )
100n = 7680 ( divide both sides by 100 )
n = 76.8
When an <span>inequality is true it is in the region that both are shaded, so the answer would be 1,1 and 2,2</span>
Answer:
13 unit
Step-by-step explanation:
................
We have been given that the standard deviation of a group of 20 scores is 15 and we are asked to find variance.
Since we know variance is square of standard deviation. In order to find out the variance of the given data we have to take the square of 15.

Therefore, our variance is 225.
It would be the first one because it’s going up by a constant rate