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ר¼Ò¾Ñé: +342 - ÊýѧEPI: 6
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- ¹ó±ö: 0.247
- ½ð±Ò: 11336.3
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- Ìû×Ó: 1221
- ÔÚÏß: 538.8Сʱ
- ³æºÅ: 405284
- ×¢²á: 2007-06-17
- ÐÔ±ð: MM
- רҵ: ÉúÎï´ó·Ö×ӽṹÓ빦ÄÜ
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effective percentage of A = (54+27+...+91)/(54+27+...+91+2+9+...+49) *100/100= 76.94/100. effective percentage of B = (236+33+...+38)/(236+33+...+38+64+35+...+23)*100/100=67.05/100. Thus A is more effective than B. Elementary or middle school statistics? |

5Â¥2014-11-18 07:02:21

2Â¥2014-11-16 21:50:26
dongzh311
½ð³æ (СÓÐÃûÆø)
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- ³æºÅ: 534864
- ×¢²á: 2008-03-28
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3Â¥2014-11-17 18:15:39

4Â¥2014-11-17 19:28:42













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