MATH-UA 120 Lecture Notes - Lecture 4: Quadrilateral, Interquartile Range, Quartile
Document Summary
Range-subtract the largest data value from the smallest data value. When data values have higher variability, the median bests represents the data. If the variability is low, then the mean bests represents the data. 4. then take the square root of that number. Interquartile range uses the median to calculate variability: find the median, quartile 1, and quartile 3, subtract the data value at quartile 3 from the data value at quartile 3. Skewed data data is clustered to one side (left or right) Bivariate data- data dealing with two different variables (comparing them typically) Univariate data- data dealing with only one variable. Correlation coefficient- determines if there is a strong correlation, low correlation, or high correlation -1
