The histogram below gives the length of service of members of the Department of Chemistry 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 25 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 40 years of service? Answer: (c) What is the probability the representative above will have less than 15 years of service given that the person has less than 20 years of service? Answer:
The histogram below gives the length of service of members of the Department of Chemistry 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 25 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 40 years of service? Answer: (c) What is the probability the representative above will have less than 15 years of service given that the person has less than 20 years of service? Answer:
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 4E
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Transcribed Image Text:The histogram below gives the length of service of members of the Department of Chemistry 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 25 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 40 years of service?
Answer:
(c) What is the probability the representative above will have less than 15 years of service given that the person has less than 20
years of service?
Answer:
Chenistry Faculty
12
11
10
9
8
6
5
4
3
2
1
10
15
20
25
30
35
40
Years of Service
7.
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