Total annual textbook sales in a certain discipline are normally distributed. Forty-five percent of the time, sales

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Total annual textbook sales in a certain discipline are normally distributed. Forty-five percent of the time, sales are above 671,000 copies, and 10% of the time, sales are above 712,000 copies. Find the mean and the variance of annual sales.

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Complete Business Statistics

ISBN: 9780077239695

7th Edition

Authors: Amir Aczel, Jayavel Sounderpandian

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Question Posted: Jun 03, 2015 05:50 AM

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Total annual textbook sales in a certain discipline are normally distributed. Forty-five percent of the time, sales

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XN PX 671000 045 0126 0126 67...View the full answer

Complete Business Statistics

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