Suppose that in a large class. the instructor announces that the average grade on an exam is 75. Which is more likely to be closer to 75: i. The exam grade of a randomly selected student in the class? ii. The mean exam grade of a sample of 10 students? Explain. S. Consider the formula for the standard deviation of the sampling distribution of p given by  What happens to the standard deviation as n gets larger and larger? Explain what this means in terms of the spread of the sampling distribution.

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