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A quality control inspector is checking a
sample of lightbulbs for defects. The table
summarizes the results. If one of these
lightbulbs is selected at random, find the
probability that the lightbulb is good, given that
it is 20 watts.
Wattage Good Defective Total
20 90 10 100
50 76 15 91
100 87
92
Total 253 30 283
ת)
The probability is
(Simplify your answer. Type an integer or a fraction.)
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The conditional probability P(light is good | light is 20 watt) = p(lig...
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