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QUESTION
There are 1150 students and all are enrolled in both Bio and Chem.Only 50 got A+ in Chem.375 got A+
There are 1150 students and all are enrolled in both Bio and Chem.
Only 50 got A+ in Chem.
375 got A+
in Biology.
45 got A+ in both Bio and Chem.
We select a student at random from the 1150 students.
At in chemAt in Bid453301_ 330= 0.287e = 770 (got no At )11502 _ 5 - 0.0043511503 - 7 2 PAX in both = 1 - 45 = 0.960911504- 380 = 0.33011505 _7 70= 066961150