angle measure 4 videos
-
Mean
Algebra Introduction to Statistics
How to calculate the mean, or average, of a list of numbers.
mean measure of center average -
Median
Algebra Introduction to Statistics
How to calculate the median of a data set.
median measure of center -
-
Parallel and Perpendicular Lines
Algebra Linear Equations and Their Graphs
How to determine whether lines are parallel, perpendicular, or neither.
parallel perpendicular point slope form intersect right angle
