A high school club consists of 5 freshmen, 5 sophomores, 4 juniors, and 6 seniors. a. How many ways can a committee of 4 people be chosen that includes one student from each class? Answer: b. How many ways can a committee of 4 people be chosen that includes 4 juniors? Answer: C. How many ways can a committee of 4 people be chosen that includes two freshmen and 2 seniors? Answer:

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A high school club consists of 5 freshmen, 5 sophomores, 4 juniors, and 6 seniors.
a. How many ways can a committee of 4 people be chosen that includes one student from each class? Answer:
b. How many ways can a committee of 4 people be chosen that includes 4 juniors? Answer:
c. How many ways can a committee of 4 people be chosen that includes two freshmen and 2 seniors? Answer:
d. What is the probability that a committee of 4 people selected at random does not include any freshmen? Answer in factorial notation,
permutation or combination notation:
e. What is the probability that a committee of 4 people selected at random includes at least three seniors given that the committee includes
NO freshmen? Answer in factorial notation, permutation or combination notation:
Transcribed Image Text:A high school club consists of 5 freshmen, 5 sophomores, 4 juniors, and 6 seniors. a. How many ways can a committee of 4 people be chosen that includes one student from each class? Answer: b. How many ways can a committee of 4 people be chosen that includes 4 juniors? Answer: c. How many ways can a committee of 4 people be chosen that includes two freshmen and 2 seniors? Answer: d. What is the probability that a committee of 4 people selected at random does not include any freshmen? Answer in factorial notation, permutation or combination notation: e. What is the probability that a committee of 4 people selected at random includes at least three seniors given that the committee includes NO freshmen? Answer in factorial notation, permutation or combination notation:
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