SOLUTION: There are a equal number of pennies nickels dimes and quarters in a bag. What is the probability that the combined value of the four coins randomly selected with replacement will b
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Question 971932: There are a equal number of pennies nickels dimes and quarters in a bag. What is the probability that the combined value of the four coins randomly selected with replacement will be .41 cents
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
One must be a penny.
The other three must add up to 40 cents. They must be a nickel, dime, and a quarter.
The first coin does not have to be anything special
The second coin has a 3/4 chance of being acceptable. It can't be the first.
The third coin has a 1/2 chance of being acceptable.
The last coin has a 1/4 chance of being acceptable.
It is independent.
The probability is 3/32.
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