In this post, we understand the concept of the sample proportion \hat{p} as a random variable whose value varies between samples, and the formulas for the mean p and standard deviation \sqrt{p(1-p)/n} of the sample proportion \hat{p} . This syllabus dot point is a part of the VCE Maths Methods topic Probability and Statistics.
The following video introduces the idea of sample proportions as a random variable.
This next video introduces the idea of sampling distribution of sampling proportion.
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