34.3 Where Is the Center of the Data: Central Tendency
Point 5 of 5
34.3.5 The Weighted Mean
Core idea
When the final exam counts for more than the homework, you score by weight; x̄ = Σwᵢxᵢ, where each weight wᵢ is how much that piece counts
Module goal. Represent a pile of numbers with a single number, master the mean, median, and mode along with their trade-offs, and understand when to use which
eastmath.com · 34.3 Where Is the Center of the Data: Central Tendency · 34.3.5 The Weighted Mean