Rework problem 7 from section 2.3 of your text. Assume that the student has a cup with 13 writing implements: 7 pencils, 4 ball point pens, and 2 felt-tip pens. (1) In how many ways can the student select 9 writing implements?    (2) In how many ways can the selection be made if no more than one ball point pen is selected

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
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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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Rework problem 7 from section 2.3 of your text. Assume that the student has a cup with 13 writing implements: 7 pencils, 4 ball point pens, and 2 felt-tip pens.

(1) In how many ways can the student select 9 writing implements? 

 


(2) In how many ways can the selection be made if no more than one ball point pen is selected?

 

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