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# The probability of a war in the international system is normally distributed with a mean of 15 and a standard deviation of 8.

The probability of a war in the international system is normally distributed with a mean of 15 and a standard deviation of 8. How far are the following scores, in standard deviation units, from the population mean and give a one sentence interpretation of each result, i.e., what it means? Use the z score formula.

What is the probability of observing between 12 and 17 wars?