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You can model Louis' options using yellow cubes for sunny days and blue cubes for rainy days.
Put two blue and two yellow cubes in a bag so that the colour of the cubes cannot be seen.
Rain (blue)  Sunny (yellow)  

Bandstand, A  88  168 
Beach, B  50  256 
Beach cafe, C  100  100 
Payment to Big Frankie 
Rain (blue) 
Sunny (yellow) 


Beach (J)  30  300  700 
Umbrella in front of the pier (K)  50  100  300 
Cafe at the end of the pier (L)  200  50  500 
What's the fairest way to choose 2 from 8 potential prize winners? How likely are you to be chosen?