Jun-seo notices that there are 13 right-handed players on his baseball team and 2left-handed players. What is the ratio of right-handed players to left-handed players?

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.