Posted by **Anonymous** on Wednesday, August 29, 2012 at 6:36pm.

A source in the Internal Revenue Service has stated that historically 90% of federal tax returns filed are free of arithmetic errors. A random sample of 25 returns are selected and checked carefully for arithmetic errors. Assuming independence, find the probability that

- statistics -
**MathGuru**, Thursday, August 30, 2012 at 5:57pm
Incomplete problem.

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