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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 account for the different sample sizes and give each sample proportion equal weight.
To make the standard deviation smaller.
To make the calculations easier.
To ensure the overall standard deviation is not negative.
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AP Statistics - 5.6 Sampling Distributions for Differences in Sample Proportions
Key terms
Sample Proportion
Sample Size
Standard Deviation
Variances
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About Fiveable
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Resources
Cram Mode
AP Score Calculators
Study Guides
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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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