# Question: consider a population consisting of the number of teachers per...

###### Question details

Consider a population consisting of the number of teachers per
college at small 2-year colleges. Suppose that the number of
teachers per college has an average *μ* = 190 and a standard
deviation *σ* = 15.

(a) Use Chebyshev's Rule to make a statement about the minimum
percentage of colleges that have between 145 and 235 teachers.
(Round your answer to two decimal places if necessary.)

**Correct Answer: 88.9**

(b) Assume that the population is mound-shaped symmetrical. What
proportion of colleges have less than 205 teachers?

I need help with letter B please. Thank you in advance :)