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 time required for a population growing at a constant rate to double in size; can be calculated using the Rule of 70 (70 ÷ growth rate %) or exponential growth equations.
AP course connection
Topic 3.5: 3.5 Population Growth and Resource Availability