Number 11
Since the auditorium can hold 600 and the student body will be divide by four parts
The answer is
x ≤ 2400
1. 42 cards
2. 3/5 of his cards
50+20=70
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We are given the following information concerning the three production machines;

Also, we are given the percentage of defective output as follows;

Therefore, if an item is selected randomly, the probability that the item is defective would be;

ANSWER:
The probability that the item is defective would be 0.0415