For a sample with M=72 and s=4, what is the X value corresponding to z= -2.00 fórmulas:

z= X-M/s
X=M+zs

the answer is 64, i just can’t seem to get to that answer.

Chandler was a caretaker at the state zoo. he noticed that the number of animals adopted by the zoo increased at a constant rate every year since 2010. which of the following graphs shows the slowest rate at which the animals in the zoo were adopted?

Find the value of x that will make l ll m

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.