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  • 25-01-2017
  • Mathematics
Answered

A bag of marbles is shown below: what is the probability of getting a striped marble first and not returning it then getting a black marble?

Verified Answer :

tastasticupcake
tastasticupcake tastasticupcake
  • 25-01-2017

The odds are the ratio of the probability of choosing a grey marble to that of not choosing a grey marble.
Probability of choosing a grey marble = 7/10
Probability of not choosing a grey marble = 3/10
Therefore the odds in favor of choosing a grey marble = 7 : 3

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