Khan Academy: Probability Density Functions

Beat the weatherman at his own game with this probability video! Sal shows students how to use probability density functions to predict random occurrences (such as rain). Probability problems - and inclement weather - are no match for...

Probability density functions for continuous random variables.

The final segment in the Khan Academy's series on function inverses. Similar to the previous video, this segment does another example for finding the inverse of a quadratic function. Again the instructor explains the need for restraints...

Learn how to verify whether two functions are inverses by their composition. Students are given examples and practice problems.

Video graphing a parabola by plotting the roots, vertex and axis of symmetry. Roots of the quadratic function are found by factoring. Vertex of the parabola is found by three different methods: taking the midpoint of the roots, finding...

Video graphing a quadratic function by evaluating it for seven different values and plotting the resulting points. [4:04]

Video defining the addition rule for probability, including finding the probability of mutually exclusive events. [10:43]

Video lesson using a Maclaurin series to approximate an exponential function by using a polynomial expansion. Provides two different definitions for e. [7:13]

Video lesson solving for the probability of winning the mega millions jackpot. [5:29]

Video defining the vertex and axis of symmetry for a parabola. Vertex is found for a specific function by completing the square to change the equation from standard form to vertex form and then reasoning through the equation. Axis of...