2_Applied_States
Measure of Central tendency Find the average Mean : Sum/N Issue with outliers Median Order and take middle value, robust , resistance to outlier Mode Assume most occurred values as means Measure of dispersion Spread of your data around central area Coefficient variation : Standard deviation as percentage of mean, like if mean is 10, then how much percentage of mean, the current value is , this cancel out any units from SD and gives , percentage like value <Image3> ex : Wind turbulance, is measure of variability in wind.( 10% turbulence of avg wind speed of 30 kmp) Its like SD but represented in % Z state : How do I know, 6 feet tall is good height from the group of basketball player/ Measure from Mean ? or measure from standard deviation of group, which can be acceptable Z = Tells how many standard deviation far this X/6 feet is ? Z =1 , means 1 SD above the average Z = -2, means 2 SD below the average
