Select the relations that are functions. { (a, 1), (b. 1), (C, 1) ] [ (a, a), (a, b). (a. c) } { (1,-a), (2. a). (3. a) ] f (a, a), (b, b), (C, c) ]
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Susan keeps track of the number of tickets sold for each play presented at The Community Theater. Within how many standard deviations from the mean do all the values fall? 135, 71, 69, 80, 158, 152, 161, 96, 122, 118, 87, 85
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