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Karina plays a video game that is scored by round. In about 500 rounds, her career average is 20 points per

round with a standard deviation of 5 points per round. Suppose we take random samples of 3 past rounds and

calculate the mean number of points ī that she scored in each sample.

Calculate the mean and standard deviation of the sampling distribution of 2.

You may round to one decimal place.

points

points

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