A coin is tossed three times. Find P(E//...

A coin is tossed three times. Find `P(E//F)` in each of the following: (i)`E=` Head on the third toss, `F=` Heads on first two tosses (ii)`E=` At least two heads, `F=` At most two heads (iii)`E=` At most two tails,`F=` At least one tail

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