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The average on the math section of the sat was 500 with a standard deviation of 100. What score must you earn to be in the top 10% of test-takers?

Respuesta :

keijosalonen

Answer: Score is 629

Step-by-step explanation:  z value for P(x > 0,90)  is 1,29

Average x is 500 and deviation is 100.  Value of score p is solved from

z = (p - x) / s      p = s·z· + x = 129 + 500 = 629

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