A worker takes a random sample of 290 bolts and finds that 29 of them are either too long or too short, thus making them unusable. estimate the number of unusable bolts in a production of 20,000 bolts.

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21-03-2017
Mathematics

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A worker takes a random sample of 290 bolts and finds that 29 of them are either too long or too short, thus making them unusable. estimate the number of unusable bolts in a production of 20,000 bolts.

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irspow irspow · Answer 1 · 2017-03-24T10:40:53-04:00

irspow irspow

24-03-2017

You set up a proportion for these types of approximations...

We will create a ratio of defective versus total...

29/290=1/10 so the estimate follows..

d/20000=1/10

d=2000

So we would estimate that about 2000 of the 20000 would be defective.

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superlena2012 superlena2012 · Answer 2 · 2020-08-20T18:06:34-04:00

superlena2012 superlena2012

20-08-2020

Answer:

2,000 (gradpoint)

Step-by-step explanation:

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