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Mean of the sampling distribution

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According to a survey in a country, 32% ofadults do not have any credit cards. Suppose a simple random sample of 600adults is obtained.

Determine the mean of the sampling distribution ___

Determine the standard deviation of the sampling distribution ___

In a random sample of 600 adults, what isthe probability that less than 30% have no credit cards? The probability is ___

Reference no: EM131083866

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