Mathematics, 19.07.2019 17:30 amychan123
In a large population, very close to 25% of the observations will fall below the 25th percentile (q1), and close to 75% fall below the 75th percentile (q3). the web site of the educational testing service reports that on the sat verbal test, with a possible perfect score of 800, the 87th percentile of 1,475,623 scores nationwide is a score of 640. what is the best estimate of exactly how many scores were below 640?
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In a large population, very close to 25% of the observations will fall below the 25th percentile (q1...
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