Question
Asked Nov 20, 2019
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2 Its known that there are 10 faulty light bulbs among a shipment of 100 light bulbs. If the
testing department randomly chooses 5 light bulbs from the shipment to test, what's the
probability that there is at least one faulty light bulb among the 5 chosen to be tested?
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2 Its known that there are 10 faulty light bulbs among a shipment of 100 light bulbs. If the testing department randomly chooses 5 light bulbs from the shipment to test, what's the probability that there is at least one faulty light bulb among the 5 chosen to be tested?

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Expert Answer

Step 1

It is given that there are 100 light bulbs (n), and one shipment has contained 10 faulty light’ bulbs.

The probability that a shipment has a faulty light’ bulbs (p) is:

Number of faluty bulbs in a shipment
Total number of bulbs in a shipment
10
100
0.10
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Number of faluty bulbs in a shipment Total number of bulbs in a shipment 10 100 0.10

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Step 2

Consider X to be a random variable defined as faulty light bulb.

There are 5 b...

х - Вiпоmial (n, p)
х - Вiпоmial (5, 0. 10)
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х - Вiпоmial (n, p) х - Вiпоmial (5, 0. 10)

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