Suppose that the distribution of heart rates for medium-sized dogs is normally distributed with mean 115 beats per minute and standard deviation 18 beats per minute (bpm). Problem 19. Approximately what percentage of medium-sized dogs have a heart rate above 97 beats per minute? a. 16% b. 32% c. 50% d. 68% e. 84% Problem 20. Approximately what percentage of medium-sized dogs have a heart rate between 88 and 144 beats per minute? a. 34.9% b. 65.1% c. 94.6% d. 59.8% e. None of the above
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