Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
The mean of a combined dataset calculated by multiplying each group's mean by its weight (frequency or count), summing those products, and dividing by the total weight.
AP course connection
Topic 1.7: 1.7 Summary Statistics for a Quantitative Variable