a. Whatis the probability that a person takingthe ex am ination scores higher than 72? b. Suppose that students scoring in the top 10% of this distribution are to receive an A grade. What is the m inim um score a student must achieve to eam an A grade? c. Whatmust be the cutoff point for passing the ex am ination if the ex am iner wants only the top 28.1% of all scores to be passing?

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