There are 30 boys and 35 girls that try out for a chorus. The choir director will select 10 girls and 10 boys from the children trying out. How many ways are there for the choir director to make his selection? A C(35, 10) + C(30, 10) B C(65, 20) C C(35, 10)C(30,10) D P(35, 10) + P(30, 10)

There are 30 boys and 35 girls that try out for a chorus. The choir director will select 10 girls and 10 boys from the children trying out. How many ways are there for the choir director to make his selection? A C(35, 10) + C(30, 10) B C(65, 20) C C(35, 10)C(30,10) D P(35, 10) + P(30, 10)

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.

Question

There are 30 boys and 35 girls that try out for a
chorus. The choir director will select 10 girls and 10
boys from the children trying out. How many ways
are there for the choir director to make his selection?
A
C(35, 10) + C(30, 10)
B C(65, 20)
C
C(35, 10)C(30,10)
D
Р(35, 10) + P(30, 10)

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