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In a game, the entry fee is 350. The game consists of tossing a coin 3 times. Yashini bought a ticket for entry. If one or two heads show, she gets her entry fee back. If she throws 3 heads, she receives double the entry fees. Otherwise, she will lose.
 
Find the probability that she:
 
i) Gets double entry fee

ii) Just gets her entry fee

iii) Loses the entry fee
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