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 517 (Magoosh web site). Assume that GMAT scores are bell-shaped with a standard deviation of 100. If required, round your answers to one decimal place (a) What percentage of GMAT scores are 617 or higher? % (b) What percentage of GMAT scores are 717 or higher? (c) What percentage of GMAT scores are between 317 and 5172 % (a) What percentage of GMAT scores are between 317 and 7171