The usher at a wedding asked each of the 80 guests whether they were a friend of the bride or of the groom. Here are the results: Bride Groom 17 42 20 1 In this sample, are the events "bride" and "groom" mutually exclusive? Choose 1 answer: A Yes No Find the probability that a randomly selected person from this sample was a friend of the bride OR of the groom. R (hrido OP gnoo

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