Answer:
THE ANSWER IS 4.50
Step-by-step explanation:
147.59 is the total amount given to each brother after all purchases were made.
142628281991919182726(35262627282
A=bh which means 900=50x18
Prob ( guessing right) = 0.25 . Get 1 point.
Prob( guessing wrong) = 0.75. Lose 0.5 points.
Expected value = 1(0.25) + (-0.5)(0.75)
= -0.125 answer
