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Posted by **holly** on Saturday, July 7, 2012 at 10:03am.

(a) Find the percentage who earn less than $27,480.

%

(b) Find the percentage who earn more than $31,808.

%

- statistics -
**Reiny**, Saturday, July 7, 2012 at 10:19amUse this link

http://davidmlane.com/hyperstat/z_table.html

Just enter your data

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