Anursery sells trees of different types and heights. these trees average 60 inches in height with a standard deviation of 16 inches. suppose that 75 pine trees are sold for planting at city hall. what is the standard deviation for the sample mean?

Solution: We are given:

μ=60,σ=16,n=75

Now the standard deviation of the sample mean = σ/sqrt(n)=16/sqrt(75)=1.8475

Therefore the standard deviation for the sample mean is 1.8475

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

my guess would be b and d, but i didn’t actually get out the pen and paper. lol