An instructor gives a 100- point examination in which the grades are normally distributed. The mean is 60 and the standard deviation is 10. If there are 5% a's and 5% f's, 15% b's and 15% d's, and 60% c's find the scores that divide the distribution into those categories.
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When the retreating monsoon blows from the northeast across the Bay of Bengal, it picks up a significant amount of moisture, which is subsequently released after moving back onto the peninsula. ... That rainy extension of the generally dry retreating monsoon is called the northeast, or winter, monsoon.
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An instructor of the standard deviation can divide the score distribution into these categories
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