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hank612
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ÀëɢϵÊýΪ±ê×¼·½²î³ýÒÔÆ½¾ùÖµ sigma / mu ´Ó¶ø sigma=70* 24.4% = 17.08 variance = 17.08^2 = 291.7264 Because (65, 65, 65, 65, 65, 95) has variance 150, and (57 57 58 58 95 95) has variance 375.2, ¹ÊÁù¸öÊýÓбȾùÖµ´óµÄÊýÖÁÉÙÓÐÁ½¸ö,È»ºóÓɶԳÆÐÔ,×î¶àÓÐËĸö. |

2Â¥2013-07-18 00:36:18
Ijinisam
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3Â¥2013-08-30 21:33:34













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