basic statistics for the behavioral sciences

(a)on a normal distribution of exam scored, poindexter scored at the 10th percentile, so he claims that he outperformed 90% of his class. Why is he correct or incorrect? Because Foofy's score is in a tail of the distribution, she claims she had one of the highest scores on the exam. Why is she correct or incorrect?

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  1. 10th percentile means you scored equal to or better than 10% os the scores. 90% scored better than Foofy. She is in the wrong tail.

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  2. (A) Wrong. 10th percentile means the lowest 10% of the class

    (B) Neither right nor wrong. It depends on which tail end the scores fall upon

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