Scores on a history exam have a mean of 78 and a standard deviation of 15. Scores on a math exam have a mean of 58 and a standard deviation of 15. George scored 92 on the history test and 89 on the math test. Round your answers to two decimal places. z-score for history exam: z-score for math exam: Answer yes or no to the following 2 questions: Is George's history score unusual? Is George's math score unusual