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I need help with the first and third quartiles of 15,17,19,22,23,27,31,36,43,44,48,54,57

is the answer 20.5;46 or 20.5;48

  • Math -

    The first quartile defines the lowest 25%, while the third quartile defines the highest 25% (lowest 75%). With 13 scores arranged from lowest to highest, the 25% is between the 3rd and 4th scores and 75% between the 10th and 11th scores.

    I hope this helps. Thanks for asking.

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