ATAR Notes: Forum

VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE General & Further Mathematics => Topic started by: ashoni on April 21, 2012, 06:58:31 pm

Title: Describe this histogram!
Post by: ashoni on April 21, 2012, 06:58:31 pm

Just wondering how to describe this histogram (see attachment).  Could someone please describe on the shape and outliers (no outliers in this histogram) , centre and spread for me?
Thanks! :)

Edit: Forgot to add attachment ><" zz

Title: Re: Describe this histogram!
Post by: Stick on April 21, 2012, 09:24:45 pm

This shape is very uncommon and unusual, so don't worry if you didn't quite understand it because VCAA always puts clear data in the exams. I'd describe the shape as approximately double bell-shaped. The total of the frequencies is 20 so the centre of the distribution approximately lies in the third statistic. As for the range, that is the largest value minus the smallest value, which works out to be 700.

Title: Re: Describe this histogram!
Post by: ashoni on April 21, 2012, 09:52:20 pm

Yeah, this frequency histogram was derived from data which was selected randomally. But thanks for explaining that out for me! :D