In: Statistics and Probability
Suppose a basketball player has made 305 out of 372 free throws. If the player makes the next 2 free throws, I will pay you $5. Otherwise you pay me $10. Step 2 of 2 : If you played this game 626 times how much would you expect to win or lose? Round your answer to two decimal places. Losses must be entered as negative.
Probability of win = p = (305/372)*(305/372)
= 0.6722
Probability of losing = q= 1-p = 1-0.6722
= 0.3278
Expected value = (p)*winning amount + q*losing amount
= 0.6722*5 + 0.3278*(-10)
= 0.083
n=626
So,expected winning for 626 games is 626*0.083
= 51.958