7.48 Purpose of sampling distribution Youd like to estimate the proportion of all students in your school

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7.48 Purpose of sampling distribution You’d like to estimate the proportion of all students in your school who are fluent in more than one language. You poll a random sample of 50 students and get a sample proportion of 0.12. Explain why the standard deviation of the sampling distribution of the sample proportion gives you useful information to help gauge how close this sample proportion is to the unknown population proportion.

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