March 29, 2017

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A mean average of 60 on 7 exams is needed to pass a course. on his first 6 exams, Adam received grades of 46,74,70,59,66 and 72. if his lowest grade of the exams already taken is to be dropped,what grade must he receive on his last exam to pass?

  • statistics-?mean average with lowest number out? - ,

    remaining 5 tests total 341 points
    6 tests with avg 60 = 360

    only needs 19 more points.

    That doesn't sound right. If he needs an average of 60 on 7 tests, but one is dropped, does he need an average of 60 on the remaining 6? If so, he's home free. 5 of the first 6 tests had a score of over 60.

    Or, does he need a total of 420 points over the 6 exams counted? That means an average of 70. In that case, he needs 79 on the 7th exam.

    Poorly worded question.

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