Given: The table below shows the scores on a Chem 103 test consisting of 10 questions worth 10 points each. The grading scale for the test is A: 80 - 100; B: 70 - 79; C : 60 - 69; D: 50 - 59; and F : 0 - 49. Student ID Score Student ID Score 1362 50 4315 70 1486 70 4719 70 1721 80 4951 60 1932 60 5321 60 2489 70 5872 100 2766 10 6433 50 2877 80 6921 50 2964 60 8317 70 3217 70 8854 100 3588 80 8964 80 3780 80 9158 60 3921 60 9347 60 4107 40 (a) To find: The percentage of the students who took the test got a grade of D.

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Q: 3

A:

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