Normal Distribution
µµ¼öºÐÆ÷°î¼±ÀÌ Æò±Õ°ªÀ» Áß¾ÓÀ¸·Î ÇÏ¿© Á¿ì´ëĪÀÎ Á¾ ¸ð¾çÀ» ÀÌ·ç´Â °Í. ...... ½ÅÀå(ãóíþ)ÀÇ ºÐÆ÷, Áö´É(ò±Òö)ÀÇ ºÐÆ÷ µî ±× ¿¹´Â ¸¹´Ù. K.F.°¡¿ì½º°¡ ÃøÁ¤¿ÀÂ÷ÀÇ ºÐÆ÷¿¡¼ ±× Á߿伺À» °Á¶ÇÏ¿´±â ¶§¹®¿¡ ÀÌ°ÍÀ» °¡¿ì½ººÐÆ÷ (Gaussian Density) ·¿ÀÂ÷ºÐÆ÷¶ó°íµµ Çϸç, ±× °î¼±À» °¡¿ì½º°î¼± ¶Ç´Â ¿ÀÂ÷°î¼±À̶ó ÇÑ´Ù. ¶ÇÇÑ A.J.ÄÉƲ·¹°¡ Åë°è¿¡ ÀÌ¿ëÇÏ¿´À¸¹Ç·Î ÀÌ°ÍÀ» ÄÉƲ·¹°î¼±À̶ó°íµµ ÇÑ´Ù ........... (Yahoo ¹é°ú»çÀü : Á¤±ÔºÐÆ÷)
Normal distribution (or density) ´Â ¾Æ·¡ ±×¸²°ú °°Àº °æ¿ì¿¡ ´ÙÀ½ ½ÄÀ¸·Î Ç¥ÇöµÈ´Ù. ¿©±â¼ Àμö ´Â ÀÇ Æò±Õ (mean) À», ´Â ÀÇ Ç¥ÁØÆíÂ÷ (standard deviation) À» ³ªÅ¸³½´Ù. ÀÎ °æ¿ì¸¦ standard normal density ¶ó ÇÑ´Ù.
(a) Æò±Õ ¿Í Ç¥ÁØÆíÂ÷ ÀÎ Á¤±ÔºÐÆ÷. (b) Ç¥ÁØ Á¤±ÔºÐÆ÷ ÇÔ¼ö (½Ç¼±), ´©ÀûºÐÆ÷ (Á¡¼±).
¾Æ¸¶ °¡Àå ¸¹ÀÌ »ç¿ëµÇ´Â 2 Â÷¿ø density ´Â bivariate normal density ÀÌ¸ç ´ÙÀ½ ½ÄÀ¸·Î Ç¥ÇöµÈ´Ù.
= 0, = 0, = 3, = 2 ÀÌ°í = 1/2 ÀÎ °æ¿ìÀÇ bivriate normal density ·Î¼ 3 Â÷¿ø ±×·¡ÇÁ°¡ ±×¸²°ú °°´Ù. constant È®·üºÐÇ¥ ÀÎ °æ¿ì°¡ ¿¡¼´Â Ÿ¿øÇüÀ¸·Î Ç¥ÇöµÈ´Ù. (a) 3 Â÷¿ø ÁÂÇ¥ (b) constant È®·üºÐÆ÷ÀÇ ¿ÜÇü .............. (ÀÌÇØ¿ë 2003)
term :
¼öÇÐ (Mathematics) È®·ü (Probability) Åë°è (Statistics) ÆÐÅÏÀÎ½Ä (Pattern Recognition)
site :
Wikipedia : Normal Distribution
The Normal Distribution Tutorial
Normal Distribution Table for Finite Mathematics
paper :
°¡¿ì½ºÀÇ ¿ÀÂ÷·Ð¿¡ ±Ù°ÅÇÑ Á¤±ÔºÐÆ÷ ¹è°æÀÇ ¿ª»çÀû °íÂû : ±¸ÀÚÈ«, Çѱ¹¼öÇлçÇÐȸ, 1999
Á¤±ÔºÐÆ÷ÀÇ È¥ÇÕ¼º ÆǴܱâÁØ (A Criterion for Identification of the Mixture Normal Distribution) : È«Á¾¼±, ÃÖº´¼ö, ¾öÁ¾¼®, Çѱ¹Åë°èÇÐȸ, 1994
Ç¥ÁØÁ¤±ÔºÐÆ÷ÀÇ È®·ü°è»ê ÇÁ·Î±×·¥ °³¹ß (Development of Probability Computation Program for Standard Normal Distribution) : ¼Û¼ÀÏ, Çѱ¹Ç°Áú°æ¿µÇÐȸ, 1997