Statistical Sciences 1023A/B Lecture Notes - Lecture 1: Standard Deviation, Interquartile Range, Supreme Headquarters Allied Powers Europe
29 Mar 2017
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Sum of all values divided by number of values. The midpoint value, separating the lower half and upper half of a dataset. Must put data from lowest point to highest. Middle value of all of your values. If the list is an even number, find the median of the two middle values. Can be misleading when the maximum is much larger than any of the other numbers. Roughly the average distance of the values from their mean. Subtract the mean daily number of steps from each number in the data set o o. Square the difference from mean so you have the squared difference. Take sum of squared differences and divide by the number of differences minus 1 o. Take the square root of this entire value. Stopped after taking the sum of squared differences and dividing by the number of differences minus 1.
