A data set consisting of 3 numbers has mean of 12. The median is also 12. The least number is 5. What is the greatest number.

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asked by Carlos
  1. First you know that the mean is 12 (average) which is found by dividing the data by the total set of numbers. Thus multiply 3x12=36

    The median is the middle number, so one number must be 12 and they tell you the least number is 5.

    5 12 _y__



    Therefore the greatest number is 19. To check, you can do 5+12+19 divided by 3 to get your mean which should be 12. And you can already see that the median is 12.

    Hope I've helped.

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    posted by Lisa

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