The SAT scores of entering freshmen at a certain university have a mean of 1200 and a standard deviation of 90. A random sample of 100 freshmen is taken and , the sample mean of their SAT scores, is computed. The sampling distribution of is
The SAT scores of entering freshmen at a certain university have a mean of 1200 and a standard deviation of 90. A random sample of 100 freshmen is taken and , the sample mean of their SAT scores, is computed. The sampling distribution of is
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