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In the SmallState Lottery, three white balls are drawn (at random) from twenty balls numbered 1 through 20, and a blue SuperBall is drawn (at random) from ten balls numbered 21 through 30. When you buy a ticket, you select three numbers from 1-20 and one number from 21-30. To win the jackpot, the numbers on your ticket must match the three white balls and the 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?

 Jun 4, 2021
 #1
avatar+121054 
+2

Not good

 

The total outcomes  are   C(20,3)  * C( 10,1)   =    11,400

 

P (winning)  =  1 / 11,400  ≈   .0087 %

 

 

cool cool cool

 Jun 4, 2021
 #2
avatar+21 
+1

how bout as a fraction?

snipezyy  Jun 4, 2021
edited by snipezyy  Jun 4, 2021
edited by snipezyy  Jun 4, 2021
 #3
avatar+121054 
0

1/ 11400   

 

 

cool cool cool

CPhill  Jun 4, 2021
 #4
avatar+21 
+1

there we go! thank you! ive been working on this for an hour already!

snipezyy  Jun 4, 2021

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