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CK-12 Foundation
Ck 12: Sums and Differences of Independent Random Variables
[Free Registration/Login may be required to access all resource tools.] This Concept introduces students to the sum and differences of independent random variables.
Annenberg Foundation
Annenberg Learner: Against All Odds: Random Variables
Video presentation on the probability of independent events, covering related topics: multiplication rule, random variable, and mean and standard deviation. [28:41]
CK-12 Foundation
Ck 12: Probability: Exponential Distributions
[Free Registration/Login may be required to access all resource tools.] Covers exponential distributions. Presents examples using a graphing calculator as well as guided and independent practice questions.