Question
Mathematics Question on Probability
Two balls are chosen randomly from an urn containing 8 white balls and 4 black balls by a player. Suppose that he wins ₹30 for each black ball selected and loses ₹15 for each white ball selected. The expected value of winning amount is :
A
₹12.72
B
₹14.72
C
₹15
D
₹00
Answer
₹00
Explanation
Solution
The correct option is (D) :₹00.