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Due to random variations in the operation of an automatic coffee​ machine, not every cup is filled with the same amount of coffee. Assume that the mean amount of coffee dispensed is 7 ounces and the standard deviation is 0.6 ounce. Use the​ 68-95-99.7 rule to complete the following.

User Tomax
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68% of the data values will be within one standard deviation (0.6) of the mean.

95% of the data values will be within 2 standard deviations (1.2) of the mean.

99.7% of the data values will be within 3 standard deviations (1.8) of the mean.

User Alberto Vassena
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