The man decided to throw a die thrice but to quit as
and when he gets a six Find the expected value of the amount he wins / loses 12 Suppose we have four boxes A,B,C and D containing coloured marbles as given
below:
Box
Marble colour
Red
White
Black
A
1
6
3
B
6
2
2
C
8
1
1
D
0
6
4
   One of the boxes has been selected at random and a single marble is drawn from
it