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In 2009, the TOEFL scores for one segment of LCC students ranged from 483 to 640....

  1. In 2009, the TOEFL scores for one segment of LCC students ranged from 483 to 640. The average was 547 with a standard deviation of 36 out of a sample of 130 people. LCC’s TOEFL scores are distributed normally. Calculate the following:
    1. P(x>600)
    2. P(x<500)
    3. P(525<x<575)
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