The mean tread life of a tire is 30,000 miles with a standard deviation of 2000 miles. Tire tread life is normally distributed. b) What percent of tire treads will last less than 28,000 miles?
c) What percent of tire treads will last between 26,000 and 32,000 miles?
d) What percent of tire treads will last more than 34,000 miles?

There is no question, there is just the answer.

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.