Homework Help: math

Posted by Sam on Sunday, January 24, 2010 at 1:35pm.

find the midrange of these:

1.5, 2.5, 3.0, 1.0, 1.4, 3.5, 1.8, 1.8, 3.3, 2.2, 2.8, 1.8

I thought you take the highest - the lowest and then divide by 2, but the answer I get is not one of the choices.

Show me the formuula please? Thanks!

math - Ms. Sue, Sunday, January 24, 2010 at 1:40pm
"midrange: a rough estimate of the center found by taking the mean of the highest and lowest value in the data set. Symbol: MR"

http://personal.jccmi.edu/TuckeyAlanaJ/portfolio/APRP/133_win02_ch3notes.htm
Ms.Sue - Sam, Sunday, January 24, 2010 at 2:27pm
Thanks! I took it to mean I add, I was minusing! It made a world of difference

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