Suppose there are 6 roads connecting town A to town B and 4 roads connecting town B to town C. In how many ways can a person travel from A to C via B?
Suppose there are 6 roads connecting town A to town B and 4 roads connecting town B to town C. In how many ways can a person travel from A to C via B?
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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1. Suppose there are 6 roads connecting town A to town B and 4 roads connecting town B to town C. In
how many ways can a person travel from A to C via B?
2. A class consists of 17 women and 65 men. If a student is randomly selected, what is the probability that
the student is a woman?
3. Based on meteorological records, the probability that it will snow in a certain town on January 1st is
26.5% . Find the probability that in a given year it will not snow on January 1st in that town.
4. A survey asks women who work full time about the number of children they have. The table below
shows the results. Make a probability distribution for the number of children.
Number of
1
4
6.
7
children
135
56
21
6.
1
Number of
families
200
245
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