On average, Upstate Chevrolet sells 20 cars each week, with a standard deviation of 2.

-How many cars sold represent 2 standard deviations above the mean? -How many cars sold represent 1 standard deviation below the mean? -Approximately 68% will fall between -Approximately 99.7% will fall between -What is the probability that the car lot will sell at least 18 cars? -What is the probability that a car lot will sell at most 26 cars?