A certain brand of automobile tire has a mean life span of 31,000 miles and a standard deviation of 2,050 miles.(Assume the life spans of the tires have abell-shaped distribution.)

(a) The life spans of three randomly selected tires are 35,000 miles, 38,000 miles, and 32,000 miles. Find thez-score that corresponds to each life span.

For the life span of 35,000 miles, z-score is

nothing

.

(Round to the nearest hundredth asneeded.)