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Records show that 15% of imported components used to manufacture light bulbs are defective. For a...

Records show that 15% of imported components used to manufacture light bulbs are defective. For a sample of five randomly selected-components, calculate the probability that exactly two are defective.

Math   Statistics-And-Probability   
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Answer #1

From the given information,

Sample size (n)=5

Probability of success (p)=0.15

We have to compute P(X=2)

Using binomial probability calculater,

Hence,

Required probability is,

P(X=2)=0.1382

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