Probability: Marbles
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A box contains 3 blue marbles and two red marbles. If two marbles are drawn randomly and without replacement, find the probability that (a) at least one of the marbles is blue, (b) at least one of the marbles is red, (c) two blue marbles are drawn, (d) two red marbles are drawn.
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The solution provides step by step method for the calculation of probabilities. Formula for the calculation is also included.
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Probability and Stats
A box contains 3 blue marbles and two red marbles. If two marbles are drawn randomly and without replacement, find the probability that (a) at least one of the marbles is blue, (b) at least one of the marbles is red, (c) two blue marbles are drawn, (d) two red marbles are drawn.
Answers
(a) At least one of the marbles is blue
Drawing at least one blue marble = Drawing one marble of each colour or Drawing two blue ...
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