nacket of 10 electronic components is known to include 2 defectives. If a sample of 4
ponents is selected at random from the packet, what is the probability that the sample
does not contain more than 1 defective?
(b) 2/3
10 13/15
(d) 3/15
What is the nrobability that the first
1/3
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probability of x lesser than Or equal to 1. So there are 2 possibilities. out of 10 2 are detective the rest 8 are good ones so in case1: 1 out of 2 defective multiplied by 3 of 8 good ones divided by 10C4 + case 2: 0 of 2 defective multiplied by 4 out of 8 good ones divided by 10C4.
the answer is 13/15.
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