20stirltrer
20stirltrer
24.03.2020 • 
Mathematics

In a certain lottery, three white balls are drawn (at random) from ten balls numbered from 1 to 10, and one red SuperBall is drawn (at random) from ten balls numbered from 11 to 20. When you buy a ticket, you select three numbers from 1 to 10 and one number from 11 to 20. To win the jackpot, the numbers on your ticket must match the three white balls and the red SuperBall. (You don't need to match the white balls in order).

If you buy a ticket, what is your probability of winning the jackpot?

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