Last year terry earned 19,436. this year terry got a raise that increased her income to 23,457 how much more money did terry make this year? if terry get a the same raise again next year what will her total income be then?

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.