Winning the jackpot in a particular lottery requires that you select the correct two numbers between 1 and 52 and, in a separate drawing, you must also select the correct single number between 1 and 35. Find the probability of winning the jackpot.
since there are exactly 2 correct numbers out of 1 to 52 so we can select 2 numbers in 52C2 =1326 ways
in the second drawing, we have to select 1 correct number we can select 1 number in 35C1 =35ways
so Prob of selecting 2 correct number =1/1326
Prob of selecting 1 correct number =1/35
since for winning jackpot we need to get 2 correct numbers as well as correct single number
since both drawings are independent
so
Prob (winning jackpot)=1/1326* 1/35 = 1/46410
=0.000021547 |
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