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red and white kop!
01-14-2011, 01:08 AM
when presented with a grouped frequency distribution, is there any other way to find the quartiles other than drawing up a cumulative frequency diagram?

galactus
01-14-2011, 08:54 AM
See here:

http://www.mathsteacher.com.au/year9/ch ... rtiles.htm (http://www.mathsteacher.com.au/year9/ch17_statistics/06_quartiles/quartiles.htm)

red and white kop!
01-28-2011, 03:15 AM
dude i know this, i mean grouped frequencies, like grouped

Subhotosh Khan
01-28-2011, 03:57 PM
dude i know this, i mean grouped frequencies, like grouped

In that case - you should have told us what your thoughts are about this question.