Suppose the temperatures of a city are normally distributed. If 68% of the temperatures are between 37 and 43 degrees, what is the best estimate, in degrees, for the mean and standard deviation?
A) Mean = 40, Standard Deviation = 3 B) Mean = 40, Standard Deviation = 2 C) Mean = 40, Standard Deviation = 4 D) Mean = 40, Standard Deviation = 5
