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The probability of having a winning raffle ticket is 15%. If you bought 40 tickets, how many winning tickets should you expect to have?

The probability of having a winning raffle ticket is 15%. If you bought 40 tickets, how many winning tickets should you expect to have?
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The probability of having a winning raffle ticket is 15%. If you bought 40 tickets, how many winning tickets should you expect to have?

User Zje
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1 Answer

4 votes
You would have a 26% chance. If you cross multiply using 15/100 and 40/x. 100 times 40 then divide by 15.
User Donnamarie
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