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The Quickness Educational Differentiation test (the QED test) measures how long it takes middle school students...

The Quickness Educational Differentiation test (the QED test) measures how long it takes middle school students to distinguish between different categories of word problems. (Low scores are good.) The QED scores are distributed on the normal curve N(50, 10). Getting in the 33rd percentile or lower will certify the student as “Pretty Darn Quick” (PDQ). What score on the test is required to be classified as PDQ?

math   Statistics-And-Probability   
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ご。. 33 e-SO O.33 10 一50 4 he sCose on the test is reqwY o be Class

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