The Graduate Management Admission Test (GMAT) is a standardized exam used by many universities as part of the assessment for admission to graduate study in business. The average GMAT score is 547.† Assume that GMAT scores are bell-shaped with a standard deviation of 100. (a) What percentage of GMAT scores are 647 or higher?  % (b) What percentage of GMAT scores are 747 or higher?  % (c) What percentage of GMAT scores are between 347 and 547?  % (d) What percentage of GMAT scores are between 347 and 647

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