I have 3 nickels, 1 quarter, and 1 penny in my pocket. If I pick out a coin from my pocket, do not replace it, then pick out a second coin from my pocket, what is the probability that the second coin that I pick out of my pocket is a nickel? So far I have come up with this: P(1st coin is a nickel)= 3/5. P(2nd coin is a nickel, if the first coin was a nickel)= 2/4. P(1st coin is a quarter)= P(1st coin is a penny)= 1/5. P(2nd coin is a nickel, if first coin was a quarter)= P(2nd coin is a nickel, if first coin was a penny)= 3/4. I don't know where to go from here.
2 answers