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never [62]
3 years ago
6

In a lot (collection) of 100 light bulbs, there are 5 defective bulbs. an inspector inspects 10 bulbs selected at random. find t

he probability of finding at least one defec- tive bulb. hint: first compute the probability of finding no defectives in the sample.
Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
5 0
Probability of finding no defective bulb
=95/100*94/99....86/91
=95!/(85!) / (100!/90!)
= 110983/190120
=>
Probability of finding at least one defective bulb
=1-110983/190120
= 79137/190120
= 0.41625 (to 5 decimal places)
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Step-by-step explanation:

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Keywords: Proportions, Conversion

Learn more about proportions at:

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