[STATS 250] - Final Exam Guide - Everything you need to know! (100 pages long)
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STATS 250 Full Course Notes
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Sample is a subset of a larger population that we can measure. When we summarize anything on our sample, we are calculating a statistic. A summary measure of population data is called parameter. A summary measure of sample data is called statistic. This is the data set we will work with today. This data asked college kids if they are sleep deprived and how much sleep they typically get per night in hours. There were 86 responses on these two variables. We want to talk about the different kinds of data we have. This is a different kind of variable since it is not numerical. Amount of sleep is a quantitative variable (refers to numbers, able to make averages) These are the two main types of variables. You can start by counting how many people said yes and no. This is a frequency table or sometimes called a relative frequency table or contingent table of the counts.
