A bag in a music class contains 4 triangles, 6 tambourines, and 5 harmonicas. If 4 instruments are drawn randomly, determine the number of ways that exactly 2 of the 4 are tambourines

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) A bag in a music class contains 4 triangles, 6 tambourines, and 5 harmonicas. If 4 instruments are drawn randomly, determine the number of ways that exactly 2 of the 4 are tambourines. b) How many different paths on the diagram below will spell PASCAL? P AA SSS CC AAA LL
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