A worker takes a random sample of 320 bolts and finds that 30 of them are either too long or too short, thus making them unusable. Estimate the number of unusable bolts in a production of 14,000 bolts.
1,313 bolts
1,400 bolts
1,300 bolts
1,320 bolts

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@JoannaBlackwelder

Can you find the probability of unusability using the 320 bolts with 30 of them unusable?

320 * 30?

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