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18 November, 05:39

Fifteen out of 60 participants scored between 17 and 21 on a test. what is the relative frequency of the class interval 17-21?

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  1. 18 November, 05:56
    0
    The frequency is how often something occurs. Here 15. It occurred 15 times that the participants scored in the interval given.

    The relative frequency (expressed as a percent) looks at how often something occurred relative to the overall occurrences. Here 15/60 = 1/4 = 25%

    The relative frequency is 25%
  2. 18 November, 06:03
    0
    The correct answer is:

    1/4, or 25%.

    Explanation:

    The relative frequency is the fraction of times something occurs compared to the total.

    In this problem, 15 out of 60 participants are in this range. This is written as:

    15/60.

    This will then simplify:

    15/60 = 1/4 = 0.25 = 25%
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