What postulate would you use to prove PQR TSR?

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.

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Hi if you want to play a sports related kahoot go to kahoot.it and type in this code: 659344