If 5 of a company’s 10 delivery trucks do not meet emission standards and 3 of them are chosen for inspection, then what is the probability that none of the trucks chosen will meet emission standards?

# If 5 of a company’s 10 delivery trucks do not meet emission standards and 3 of them are chosen for inspection, then what is the probability that none of the trucks chosen will meet emission standards?

1. A
2. B
3. C
4. D

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### Solution:

The probability that none of the trucks chosen will meet emission standards is,
Thus, we have
Substitute the values in the P(E) equation, we get
Hence, the correct option is 1.

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