Question

The probability of choosing a red marble at random from a bag is 1/5. What are the odds in favor of choosing a red marble

Answer 1

the answer would be 4

Answer 2

1 : 4

Explanation:

You want the odds in favor of an event with a probability of 1/5.

Odds

The odds in favor of an event with probability p are ...

p : (1 -p)

Here, that is ...

1/5 : (1 -1/5) = (1/5) : (4/5) = 1 : 4

The odds in favor of choosing a red marble are 1 : 4.

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