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arjtryarjtry
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If Xn =n^2+8n+20 for n=7, 4, 8, 5, 10, 11, 6, 12, and 9, 29 Jul 2008, 10:25
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If Xn =n^2+8n+20 for n=7, 4, 8, 5, 10, 11, 6, 12, and 9, what is the median of all Xn?
A. 68
B. 104
C. 125
D. 144
E. 148



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zoltan
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If Xn =n^2+8n+20 for n=7, 4, 8, 5, 10, 11, 6, 12, and 9, 29 Jul 2008, 10:35
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D. I can explain if it is correct.
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arjtryarjtry
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If Xn =n^2+8n+20 for n=7, 4, 8, 5, 10, 11, 6, 12, and 9, 29 Jul 2008, 10:38
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hmmm, im getting E... so donno.
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zoltan
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If Xn =n^2+8n+20 for n=7, 4, 8, 5, 10, 11, 6, 12, and 9, 29 Jul 2008, 10:48
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Sorry I wanted to say it is E.
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If Xn =n^2+8n+20 for n=7, 4, 8, 5, 10, 11, 6, 12, and 9, 29 Jul 2008, 20:25
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148 for me. The median of all Xn is basically the value when n=8 , as 8 is the median value in the list. Plug it in and you get 148



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