The final score in a math contest is made up of 50% test scores, 25% oral participation scores, and 25% project scores. ella earned an average of 85 on her tests, 95 on oral participation, and 75 on projects. what was her final score in the contest? enter your answer in the box.

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.