A population has a mean of 300 and a standard deviation of 80. Suppose a simple random sample of size 100 is selected and is used to estimate 44. Use z-table.
a. What is the probability that the sample mean will be within +3 of the population mean (to 4 decimals)?
b. What is the probability that the sample mean will be within +14 of the population mean (to 4 decimals)?

d≈7.07in

step-by-step explanation:

d. vertex

step-by-step explanation:

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.

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