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Average(Mean)

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Question

What is the average number of books purchased for library A during 2004, 2005, 2007 and 2008?

A

465

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B

455

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C

460

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D

445

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E

450

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Solution

The correct option is B 455
Average number of books purchased for library A in 2004, 2005, 2007 and 2008
$= \frac{160 + 380 + 760 + 520}{4}$
$= \frac{1820}{4} = 455$

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