a deck has four cards - an ace of spades, an ace of hearts, an ace of diamonds and an ace of club. two cards will be drawn with replacement. let H denote the number of the ace of hearts is drawn
"P(H=0)=\\frac{3}{4}*\\frac{3}{4}=\\frac{9}{16}."
"P(H=1)=\\frac{1}{4}*\\frac{3}{4}+\\frac{3}{4}*\\frac{1}{4}=\\frac{6}{16}=\\frac{3}{8}."
"P(H=2)=\\frac{1}{4}*\\frac{1}{4}=\\frac{1}{16}."
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