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July 2, 2015

Homework Help: statistics

Posted by ALFREDA on Thursday, April 19, 2012 at 3:07pm.

I need to find the class midpoint, boundaries and class with for the following problem

Tar Cigarette Filter Frequency
2-5 2
6-9 2
10-13 6
14-17 15

I did the midpoint and boundaries
3.5 5.5
7.5 9.5
11.5 13.5
15.5 17.5
But for the width I got an answer of 1.25 can someone please let me know if I have the problem correct.

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