If the standard deviation is 3, what is the population variance?
a.
2
b.
6
c.
9
d.
12

C) 9

Step-by-step explanation:

Variance is the square root of the standard deviation.

Standard deviation is defined as the outcome of the average mean of the elements present in the group to determine its measurement.  

Given that, standard deviation= 3

                   Variance = ?

Then, Variance =

=3^2  

=9

Therefore, Option (C) is correct.

irrational, cannot

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!