Learn how to calculate the mean by walking through some basic examples & trying practice problems. The mean is used to summarize a data set. It is a measure of the center of a data …

Learn about mean, median, and mode with Khan Academy's comprehensive review of these fundamental concepts in statistics.

Learn how we define the derivative using limits. Learn about a bunch of very useful rules (like the power, product, and quotient rules) that help us find derivatives quickly.

The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered …

The derivative of a function describes the function's instantaneous rate of change at a certain point - it gives us the slope of the line tangent to the function's graph at that point. See how we …

I want to ask, is it a function that is important? What I mean is that even if an equation does not satisfy the definition of a function, we can still get its results. Is there any special reason why …

We can approximate integrals using Riemann sums, and we define definite integrals using limits of Riemann sums. The fundamental theorem of calculus ties integrals and derivatives together …

Honestly, i thought translations, rotations, reflections and dilations would be hard as i just came from 7th grade. Turns out it's easier than the 7th grade math, Lol- Also, Has math always been …

Not here, no. If you're working with computer representations of matrices, it's often easiest to 0-index. But in pure math, we start counting at 1.

If you want to remove the outliers then could employ a trimmed mean, which would be more fair, as it would remove numbers on both sides.