Question
There are 50 components in a batch of which 4 are defective. Given that two components are randomly chosen, without replacement, and that the first component chosen is good, what is the probability that the second component is defective?
Step 1
We know that the first component chosen is good. So, there are 49 components left in the batch (50 - 1 = 49). Show more…
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A batch of 40 components contains 5 which are defective. If a component is drawn at random from the batch and tested and then a second component is drawn at random, calculate the probability of having one defective component, both with and without replacement.
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