Question 1193204
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From the Table, take the number of total females, which is 42.


Add to it 6, the number of males who have grade "C".


The sum is  42 + 6 = 48.


Now, to get the answer, relate 48 to the grand total, which is 72.



The ratio {{{48/72}}} = {{{2/3}}}  is your answer.
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Solved.