Question

A player tosses three coins. he wins rupees 5 if three heads appear and rupees 3 if two heads appear and rupees 1 if one head appear and he loses rupees 15 if no head appears how do you find he is expected game explain​

Answer 1

Answer:

5×1/8+ 3×3/8 + 1×3/8 - 15×1/8 = 1/4