# Psychology 2810 Study Guide - Midterm Guide: Box Plot, Standard Deviation, Quartile

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24 Apr 2014
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## Document Summary

Inferential statistics: comparing tests for statistical significance, such as a t-test. Median: the measurement value below which 50% of the measurements fall (50th percentile) Know the difference between parameters and statistics, and know the differences for the formulas and the symbols. Mean: the sum of all of the measurements divided by the number of measurements. Range: difference between the highest and lowest values in a set of data. Boxplot: plot first and third quartile as the box, line in middle of box is median. The first and last bar of the boxplot represents the minimum and maximum. Need to know the standard deviation and variance formula (even more difficult formula if unable to do so on the calculator) Don t write on formula sheet? (hinson will get pissed) Write out everything, the steps that you show will get you part marks on the exam. Show work, write out the formulas and steps.

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