On a test that has a normal distribution, a score of 78 falls two standard deviations above the mean, and a score of 50 falls two standard deviations below the mean. Determine the mean of this test.

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

3; 9 is 8 to -4

step-by-step explanation:

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.

the answer is b.6

step-by-step explanation: