Chad bought a watch that normally costs
w dollars. He used a
30% discount.
The expression
0.7w
describes the amount of money Chad paid for the watch. We can also use the expression
w−0.3
to represent the same quantity.
Match each amount in the situation with the expression that represents it.

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.