n manufacturing a product, 85% of the units that are produced are not defective. Of the products inspected, 10% of the good ones (i. e., not defective) are falsely seen as defective and not shipped whereas only 5% of the defective products end up approved and shipped. If a product is shipped, what is the probability that it is defective?

0.0097 = 0.97% probability that it is defective

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

In which

P(B|A) is the probability of event B happening, given that A happened.

is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Product is shipped.

Event B: It is defective.

Probability of the product being shipped:

100 - 10 = 90% of 85%(not defective).

5% of 100 - 85 = 15%(defective). So

Probability of being shipped and being defective:

5% of 15%. So

What is the probability that it is defective?

0.0097 = 0.97% probability that it is defective

1 and 2

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answer: options?

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