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