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2000 AMC 8 Question 21

AMC8 · 2000 AMC 8

Question 21

Keiko tosses one penny and Ephraim tosses two pennies. The probability that Ephraim gets the same number of heads that Keiko gets is
  1. $\dfrac{1}{4}$
  2. $\dfrac{3}{8}$
  3. $\dfrac{1}{2}$
  4. $\dfrac{2}{3}$
  5. $\dfrac{3}{4}$