Khan Academy: Probability Using Combinatorics: Example: Lottery Probability

Under which condition should you calculate a conditional probability? An educational video explains in detail the notation and calculations involved when finding a conditional probability. Using Venn diagrams to organize the...

Video lesson solving for the probability of winning the mega millions jackpot.

Thi is a video lesson finding the probability of getting exactly three heads out of eight flips of a coin by calculating combinations.

Video showing the probability of exactly 3 heads in 5 flips using combinations.

Video lesson demonstrating the probability of getting a certain hand in a game of cards by using combinations. I

Video demonstrates finding the conditional probability of getting 4 heads out of 4 flips with fair and unfair coins. Includes link to additional practice problems. [6:33]

Video describes finding the conditional probability of getting two heads out of two flips with fair and unfair coins. Includes link to additional practice problems. [9:01]

Video finding the probability of exactly two heads in three coin flips by looking at the sample space. [2:13]

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

Sal dives in even deeper with a few more examples of exponential decay. Practice calculating k from half-life, and calculating initial mass. [7:21]