OpenStax, Introductory Statistics 2e §4.2 Mean or Expected Value and Standard Deviation · Try It 1 · Probability · Discrete distributions
Mean or Expected Value and Standard Deviation · Try It 1
A customer orders 1, 2, or 3 bottles of water. The probability of ordering 1 bottle is 0.6, the probability of ordering 2 bottles is 0.3, and the probability of ordering 3 bottles is 0.1. Find the long-term average or expected value, μ, of the number of bottles a customer will order.
OpenStax, Introductory Statistics 2e · §4.2 Mean or Expected Value and Standard Deviation · Try It 1
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