[See Steps] suppose that in an assortment of 20 blackbatteries, there are 5 with defective switches. In a draw without replacement, if 3 blackbatteries are
Question: suppose that in an assortment of 20 blackbatteries, there are 5 with defective switches. In a draw without replacement, if 3 blackbatteries are picked at random, what is the probability that all three have defective switches.
0.25000, 0.008772 , 0.015625 or none of them
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