The probability that Mr Glum remembers his wife's birthday and buys her a present is 1/3. The probability that he does not lose the present on the way home is 2/3. The probability that Mrs Glum likes the present is 1/6. a. Calculate the probability that Mrs Glum receives a birthday present. b. What is the probability that Mrs Glum receives a birthday present but dislikes it? c. What is the probability that she is happy on her birthday? d. What is the probability that she is not happy on her birthday?

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