interquartile range

interquartile range : The interquartile mean (IQM) is a statistical measure of central tendency, much like the mean (in more popular terms called the average), the median, and the mode. The IQM is a truncated mean and so is very similar to the scoring method used in sports that are evaluated by a panel of judges:..   More from Wikipedia

interquartile range : In statistics, the midhinge is the average of the first and third quartiles and is thus a measure of location. Equivalently, it is the 25% trimmed mid-range; it is an L-estimator. The midhinge is complemented by the H-spread, or interquartile range, which is the difference of the third..   More from Wikipedia

  How to find the median and inter-quartile range ... GCSE Maths Mathematics Median IQR

 

Question : i know how to find the interquartile range for a group of even numbers but i don't know how to find it for a group of odd numbers. right now i'm trying to find the interquartile range for a set of 19 numbers. if you could help me by finding the interquartile for this example that'd be great! 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19.

Answer : median = Q2 = 10 Q1 = median of 1, 2, 3, 4, 5, 6, 7, 8, 9 = 5 Q3 = median of 11, 12, 13, 14, 15, 16, 17, 18, 19 = 15 notice I left the 10 out of both sets since Q1 is the median of the numbers below Q2 and Q3 is the median of the numbers above Q2 then interquartile range = Q3 - Q1 = 15 - 5 = 10 read example 2 and the note underneath it, this page should help you understand http://www.statcan.ca/english/edu/power/ch12/range.htm ...   More from Yahoo Answers

Question : Does anyone know how to plot the interquartile range on a graph in Excel?

Answer : check free excel tutorials(videoprofessor.com)..   More from Yahoo Answers

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