The histogram below gives the length of service of members of the Department of Mathematics and Statistics at a particular university. The classes, in years of service, are 0−−4.9, 5−−9.9, etc., and...

The histogram below gives the length of service of members of the Department of Mathematics and Statistics at a particular university. The classes, in years of service, are 0−−4.9, 5−−9.9, etc., and the vertical axis represents the number of faculty.

(a) What percent of the department faculty have 20 or more years of service?
Answer:  %

(b) If a member of the department is chosen at random to serve on a university committee, what is the probability (in decimal form) that the chosen representitive will have between 25 and 35 years of service?
Answer:

(c) What is the probability the representative above will have less than 5 years of service given that the person has less than 15 years of service?
Answer:

Extracted text: Mathenatics and Statistics Faculty 12 - 11 - 10 - 8 7 6 4 3 2 10 15 20 25 30 35 Years of Service