# Upper Quartile Definition?

There are different types of quartiles depending on how it is used. It can be a lower or an upper quartile. The upper quartile (Q3) is being defined as the median of the upper half of the data set.
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Q&A Related to "Upper Quartile Definition?"
 it is the top 25% of the data. http://wiki.answers.com/Q/What_is_the_definition_f...
 1. Add 1 to the number of items in your data set. For example, if your data set has 23 items, add 1 to 23 to get 24. 2. Multiply the result by 3/4 to find the item in your data set http://www.ehow.com/how_8359496_upper-quartile.htm...
 The third quartile (designated Q3) = upper quartile = cuts off highest 25% of data, or http://www.chacha.com/question/what-is-an-upper-qu...
 It's easy to find out: just plug in the sequence 1, 2, 3, 4, 5 and ask for the statistics. The first quartile comes back as 1.75. Therefore, it's picking a point between 1 and 2 and http://www.quora.com/What-definition-of-quartile-d...
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