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21 November, 02:46

The exam scores for 100 students when 40 students got an F, 25 students got a D, and20 students got a C.

a. There would be one peak on the far left (F's).

b. The distribution would be right-skewed because the scores trail off to the right.

c. The variation is large

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  1. 21 November, 03:15
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    a. There would be one peak on the far left (F's).

    Step-by-step explanation:

    There are 100 students:

    40 got an F

    25 got a D

    20 got a C.

    100 - (40+25+20) = 15 got an A or a B.

    Most of these students got bad grades, so the variation is not very large.

    The distribution goes from the left (the lower grades), to the right. The lower grades had a higher frequency, so the distribution is left-skewed.

    The most common grade is F, so there is one peak on the far left.

    So the correct answer is:

    a. There would be one peak on the far left (F's).
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