95.2k views
2 votes
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.

2 Answers

1 vote
29/290 = 0.1
0.1 * 20,000 = 2,000
There will be 2,000 unusable bolts. I hope this helps :)
User Decyclone
by
8.1k points
2 votes
i think 2,000 because for every 10 bolts one of them is going to be unusable and 20,000 divided by 10 is 2,000
User Autonomatt
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8.0k points
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