c) A box contains two white marbles, three black marbles and four red marbles. i) In how many ways can three marbles drawn from the box if at least one black marbles is to be included in the draw. ii) What is the probability at least one black marbles was included in the draw.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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c) A box contains two white marbles, three black marbles and four red marbles.
i) In how many ways can three marbles drawn from the box if at least one black marbles
is to be included in the draw.
ii) What is the probability at least one black marbles was included in the draw.
Transcribed Image Text:c) A box contains two white marbles, three black marbles and four red marbles. i) In how many ways can three marbles drawn from the box if at least one black marbles is to be included in the draw. ii) What is the probability at least one black marbles was included in the draw.
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