Suppose a simple random sample of size n=64 is obtained from a population with mμ=84 and σ=16. (a) describe the sampling distribution of x. (b) what is p(x)> 87.6? (c) what is p x≤79.2? (d) what is p 81.3

if x decreases by 4 then y increases by 10

step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

answer: what are the answer choices?

step-by-step explanation: