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AP Statistics
Unit 5 – Sampling Distributions
Topic 5.6
Why do we divide the variances of each sample proportion by their sample size before finding the overall standard deviation?
To make the standard deviation smaller.
To account for the different sample sizes and give each sample proportion equal weight.
To ensure the overall standard deviation is not negative.
To make the calculations easier.
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AP Statistics - 5.6 Sampling Distributions for Differences in Sample Proportions
Key terms
Sample Size
Sample Proportion
Standard Deviation
Variances
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About Fiveable
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Cram Mode
AP Score Calculators
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Crisis Text Line
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© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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