are157-homework-1-key

# are157-homework-1-key - H o m e w o r k 1 A R E 1 5 7 K E Y...

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Unformatted text preview: H o m e w o r k 1 A R E 1 5 7 K E Y W in t e r 2 9 M a c h in e A M a c h in e B 1 2 .0 1 2 .0 4 2 2 .0 1 2 .0 5 3 2 .0 4 2 .0 5 4 2 .0 4 2 .0 7 5 2 .0 4 2 .0 7 6 2 .0 6 2 .0 7 7 2 .0 6 2 .1 8 2 .0 6 2 .1 9 2 .0 6 2 .1 1 2 .1 2 .1 1 1 2 .1 2 .1 1 2 2 .1 2 .1 2 1 3 2 .1 2 .1 2 1 4 2 .1 2 6 .1 2 1 5 2 .1 2 .1 2 1 6 2 .1 3 2 .1 2 1 7 2 .1 3 2 .1 2 1 8 2 .1 3 2 .1 4 1 9 2 .1 3 2 .1 4 2 2 .1 7 2 .1 4 In a n o rm a l d is t r ib u t io n , th e e x t r e m e v a lu e s ( s u c h a s "X m a x " a n d " X m in " ) a r e r a r e , o c c u r r in g in th e ta i ls o f th e d is t r ib u t io n fu n c t io n . S o i f a s a m p le is ta k e n , i t is l ik e ly th a t th e i te m s p ic k e d a t r a n d o m w i l l b e c lo s e r to th e m e a n t h a n t h e "w o r s t " e x a m p le s th a t th e p r o c e s s is c a p a b le o fm a k in g . U n le s s y o u to o k a v e r y la r g e s a m p le , y o u w o u ld te n d to o v e r lo o k p o s s ib le q u a l i t y p r o b le m s b y ju s t " e y e b a l l in g " th e d a ta a s th e e m p lo y e e in th is q u e s t io n s u g g e s te d S im i la r ly , i f I w a n te d to k n o w h o w ta l l th e ta l le s t s tu d e n t in o u r c la s s w a s , I c o u ld n ' t ju s tm e a s u r e a f e w r a n d o m ly s e le c te d s tu d e n t s , a n d a s s u m e th e ta l le s t o n e w a s r e a l ly th e ta l le s t o v e r a l l . W e c a n s e e t h a t : tM...
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are157-homework-1-key - H o m e w o r k 1 A R E 1 5 7 K E Y...

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