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jabile

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ÒýÓûØÌû:
7Â¥: Originally posted by LeBlanc at 2015-11-30 10:47:36
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zaq123321

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Guess a is the correct one

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2Â¥2015-11-29 23:19:46
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LeBlanc

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by zaq123321 at 2015-11-29 23:19:46
Guess a is the correct one

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3Â¥2015-11-29 23:43:30
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zaq123321

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If c is correct, then a is correct. Usually there is some boundary for this case. Thus b and d are excluded

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5Â¥2015-11-30 07:36:51
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LeBlanc: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2015-11-30 11:23:37
DX\leq E(X-0.5)^2\leq 0.25
6Â¥2015-11-30 08:39:05
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LeBlanc

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
6Â¥: Originally posted by jabile at 2015-11-30 08:39:05
DX\leq E(X-0.5)^2\leq 0.25

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7Â¥2015-11-30 10:47:36
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LeBlanc

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by zaq123321 at 2015-11-30 03:03:27
If c is correct, then a is correct. Usually there is some boundary for this case. Thus b and d are excluded

ÕâÀïXÊÇ·þ´Ó£¨0,1£©ÉϵľùÔÈ·Ö²¼Âð£¿Èç¹ûÊÇ£¬ÄÇôDX=1/12ѽ£¬ÎªºÎ»¹ÓÐÕâ¸ö·¶Î§£¿
8Â¥2015-11-30 10:47:51
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LeBlanc

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
5Â¥: Originally posted by zjxxcf at 2015-11-30 07:36:51
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zjxxcf

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
9Â¥: Originally posted by LeBlanc at 2015-11-30 10:48:39
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