# Math

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1) The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code reader. There are 24 errors after 1000 scans. Is it reasonable for the manager to expect less than 5% errors in 1000 scans?

2) Just to be sure, the manager has more samples taken. There are 36 errors after 1000 scans. Is t reasonable for the manager to expect less than 5% errors in 1000 scans?

• Math -

Yes and yes.

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