Question: The data set has mean 10 and standard deviation 3. Fill in the following blanks: a. Approximately 68% of the observations lie between and .

The data set has mean 10 and standard deviation 3. Fill in the following blanks:

a. Approximately 68% of the observations lie between and .

b. Approximately 95% of the observations lie between and .

c. Approximately 99.7% of the observations lie between and .

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