A breeder has determined that the mean life expectancy of her dogs is 10.3 years with a standard deviation of 1.7 years. A normal distribution is assumed. Karen buys one of these dogs. a) Sketch a normal distribution curve that represents this scenario. Label the years for one, two, and three standard deviations above and below the mean. b) What is the probability, rounded to the nearest hundredth, that the dog will live longer than 7.2 years? c) What is the probability, rounded to the nearest hundredth, that the dog will live between 8.5 and 12.7 years