In a population of n=10 scores, the smallest score is x=8 and the largest score is x=20. the range for the population is

The range for the population is __12__.

Step-by-step explanation:

Given that in a population of N = 10 scores,  the smallest score is X=8 and the largest score is X=20.

We know that range is the difference between maximum and minimum

Here maximum =20 and minimum =8

Range

Range is thus the difference between the highest and the lowest in the data set.

In our data it is given that population has only 10 scores

Highest is 20 and lowest is 8

So range is 12

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: