2008- 6- 20
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#7
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أكـاديـمـي
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رد: Central tendency
اقتباس:
I always search for info. that I'm not sure about in Wikipedia
after I finish studying the most necessary lectures
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lectures are not always a good reference.......you should tack your knowledge from the te_t book
but in the exam you should answer according to lectures of your teacher
thank you 
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