The scores on a test given to all juniors in a school district are normally distributed with a mean of 76 and a standard deviation of 6.
Find the probability that a randomly chosen junior has a score between 64 and 82.
The probability of randomly choosing a junior whose score is between 64 and 82
is

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5

12.5 feet

step-by-step explanation:

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )