HP 46 - Page 35

Delete the highest and lowest age. (The same procedure is used for
deleting unwanted or incorrect entries.) What is the new mean and
standard deviation? What is the sum of the squares of X?
Press:
84
mmm
;.
34.00
I=-
=
47.00
i=
s
8.00
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-
s
47
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574
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x
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6
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