In: Statistics and Probability
Suppose you are offered this opportunity: You can place a bet of $10 and someone else tosses a coin. You win an additional $15 if heads occur, and you lose your $10 if tails occur What is the expected value of this game? Should you play?
Given:
Bet is of $10.00
If head occurs then additional winning of $15.00.
If tail occurs then losing $10.00.
We know
Probability of occurring head when tosses a coin = ½
Probability of occurring tail when tossing a coin = ½
Expected value of game = (1/2 × 15 – 1/2 × 10) $
= $ 2.5
Expected value of this game is $ 2.5.
I should play the game because our expected value if positive which means that chance of profit of money is more.
Expected value of this game is $ 2.5.