Suppose that 70 of all tax returns lead to a refund a
Suppose that 70?% of all tax returns lead to a refund. A random sample of 100 tax returns is taken
What is the mean of the distribution of the sample proportion of returns leading to? refunds?
What is the variance of the sample? proportion?
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suppose thatnbsp70nbspof all tax returns lead to a refund a random sample ofnbsp100 tax returns is takenwhat is the
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