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OpenStudy (anonymous):
The mean height is 170 cm with a standard deviation of 6 cm. In a group of 1200 of these males, about how many would be more than 164 cm tall?
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OpenStudy (campbell_st):
well 164 is 1 standard deviation below the mean... well given the symmetry of the curve its 34.1% + 50% = 84.1% so its 1200 x 0.841 = 1009.2 so approx 1010 people...
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