Nursing 3340A/B Study Guide - Final Guide: Test Statistic, Blood Transfusion, Decision Rule
17 Dec 2016
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Frequency distributions: presenting the big picture view of your data. This shows the frequency of each measure of a variable. A frequency distribution is created by collecting all the responded from a sample and is put into a table. The frequency of each variable is recorded in the table this is the total numeric variable of the value of interest. # of pts who stayed this long (frequency) # of pts who stayed this long or less (cumulative. 50 in this example, a relative frequency could be 14% for 3 days spent in the hospital . 3/50(totaly # of pts in study) = 0. 14. This is helpful to demonstrate that proportion of the observations this particular observation is. Cumulative frequency tables can be added to your frequency distribution table. this will list the # of observations with a value less than the maximum value of the variable interval.
