Find $P(E | F)$ for a coin tossed three times,where $E$ is the event 'at least two heads' and $F$ is the event 'at most two heads'.

  • A
    $\frac{3}{7}$
  • B
    $\frac{4}{7}$
  • C
    $\frac{1}{7}$
  • D
    $\frac{2}{7}$

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