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Question
Suppose P(B) = `2/5`. Express the odds event B occurs
Solution
P(B) = `2/5`
Then P(B') = 1 – P(B)
= `1 - 2/5`
= `(5 - 2)/5`
= `3/5`
`("P"("B'"))/("P"("B")) = (3/5)/(2/5)`
= `3/5 xx 5/2`
= `3/2`
∴ The odds that the event B occurs is 2 to 3.
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