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5 August, 07:58

In a relative frequency histogram of ages of students, the height of each bar represents what quantity?

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  1. 5 August, 09:11
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    The number of students in the sample whose heights fall within the range defined by the cell or bin of the histogram.

    Example:

    Let the heights of students be represented by the sample

    x = [55,62,58,70,63,57,65,59,61,56]

    The maximum value is 70 and the minimum value is 55.

    The range of the data is 15.

    If 5 cells or bins are used for the histogram, each bin will have a range of 15/5=3.

    The histogram of this data sample is shown below.

    The first bin has a range of [55, 58]. Its relative frequency is 3, which means that 3 students have heights within the range [55,58] inches.
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