3 years ago

Can someone help me out?

Mathematics

1 answer:

Harman [31]3 years ago

3 0

16 miles.

Divide 4/5 to get .8, an then multiply .8 by 20

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A shipping container contains seven complex electronic systems. Unknown to the purchaser, two are defective. Two of the seven ar

kodGreya [7K]

Answer:

$\large\boxed{\large\boxed{10/21}}$

Explanation:

There are only two mutually exclusive possibilities for each complex electronic system: being defective or being not defective:

Number of complex electronic systems: 7
Nmber of defective systems: 2
Number of not defective systems: 5

Probability that no defective systems are found in the sample is the equal to the probability of selecting them consecutively without replacement and finding each one is not defective:

Porbability the first is not defective × probability the second is not defective

5/7 × 4/6 = 20/42 = 10/21

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Viefleur [7K]

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2^5x2^100

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castortr0y [4]

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