Question

A PURSE CONTAINS FOUR COINS EACH OF WHICH IS A RUPEE OR TWO RUPEE COIN.FIND THE EXPECTED VALUE OF A COIN IN THAT PURSE.

Answer 1

Please see the attachment

Answer 2

Answer:

6

Step-by-step explanation:

p(4 1's) + p(3 1's, 1 2) + p(2 1's, 2 2's) + p(1 1, 3 2's)

1/16 * 4 + 4/16*5 + 6/16*6 + 4/16*7 + 1/16*8