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22 June, 13:26

Angela took a general aptitude test and scored in the 91st percentile for aptitude in accounting. (a) What percentage of the scores were at or below her score? (b) What percentage were above?

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  1. 22 June, 13:37
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    a) 91% of the scores were at or below her score.

    b) 9% of the scores were above her score.

    Step-by-step explanation:

    When a value V is said to be in the xth percentile of a set, x% of the values in the set are lower than V and (100-x) % of the values in the set are higher than V.

    In this problem, we have that:

    Angela scored on the 91st percentile.

    (a) What percentage of the scores were at or below her score?

    Since Angela scored on the 91st percentile, 91% of the scores were at or below her score.

    (b) What percentage were above?

    Since Angela scored on the 91st percentile, 9% of the scores were above her score.
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