🔍
🏠
Khan Academy (English - US curriculum)
🎲
Khan Academy (English - US curriculum)
Math
AP®︎ Statistics
Random variables and probability distributions
Mean and standard deviation of random variables
Mean and standard deviation of random variables
Mean (expected value) of a discrete random variable
Mean (expected value) of a discrete random variable
Interpreting expected value
Interpret expected value
Variance and standard deviation of a discrete random variable
Standard deviation of a discrete random variable
