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OpenStudy (anonymous):
A test shows that 10 out of 100 gadgets are defective. In a random sample of two gadgets are chosen, the probability that both are defective it is:
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OpenStudy (amistre64):
10/100 * 10/100
OpenStudy (amistre64):
since the sample is less than 5% of the population; you work it as if there is replacement. ,1 * .1 = .01
OpenStudy (anonymous):
ok thank you
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