Measure of spread Quantities that measure the degree of variation in data. Class 1 Class 2 _______________ _______________ RANGE – the difference between the highest and lowest score.
Mean absolute deviation A measure of spread that shows the difference between these distributions. DEVIATION: The difference of each number from the mean ABSOLUTE DEVIATION: Absolute value of each number found from the deviation
Property of the mean “The sum of the deviations of a set of numbers from the mean of a set is 0.”
Applying the math Table shows the normal mean temperatures in Fahrenheit for each month in San Francisco and Miami. A: Calculate the range of mean temperatures for each city. B: Use the mean absolute deviation to determine in which city the temperatures are more consistent.