Describing the Distribution of a Quantitative Variable

AP Statistics· difficulty 2/5

A child's height is reported as being in the 80th percentile for her age group.

Cumulative Relative Frequency 0.80 child's height

What does this mean?

  • A

    She is 80 cm tall

  • B

    She is taller than about 80% of children her age

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  • C

    She is in the top 80% of all children

  • D

    Her height equals 80% of the maximum

Explanation

A percentile rank of 80 means about 80% of the comparison group is at or below her height.

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