### Almost done with lecture 10 notes

parent 1229f9f1
 ... ... @@ -33,6 +33,7 @@ \2 \textit{Why do we consider our measurements random variables?} \2 CDF vs. PDF vs. PMF \2 \textit{How do we calculate probability a value will be within a range?} \3 Integral (CDF) at point $b$, minus integral at point $a$ \1 Important probability concept: Expectation \2 The value you can expect to get'' ... ... @@ -44,11 +45,12 @@ \2 $E[XY]$ is expected value of $X * Y$ \2 Linearity of expectation \1 Mean, median, mode \2 \textit{When to use each} \2 Categorical: mode, total: mean, skewed: median, else: mean \2 Additive (arithmetic), multiplicative (geometric), harmonic \2 Mistakes with means: large range, skewness, multiplying when not independent, ratio with different bases \1 Covariance \2 Measure whether two random variables vary together ... ...
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