X Construct a normal distribution curve and label the horizontal axis Then answer each question The mean life of a tire is 30 000 km The standard deviation is 2000 km km and km 1 68 of all tires will have a life between 2 95 of all tires will have a life between km and 3 What percent of the tires will have a life that exceeds 26 000 km 4 If a company purchased 2000 tires how many tires would you expect to last more than 28 000 km km 5 If a company purchased 2000 tires how many tires would you expect to last less than 26 000 km 6 If a company purchased 2000 tires how many tires would you expect to last between 26 000 km and 34 000 km X Answer each of these 1 How many ways can eight computer operators be seated in a row 2 How many ways can a student select two electives from a possible choice of ten electives