According to the National Weather Service, the mean daily temperature in Fort Pierce is 73.5 F, with a standard deviation of 5.8 F. Consider the mean daily temperature in Fort Pierce for a sample of 71 randomly selected days. Determine the probability that the mean daily temperature of a sample of 71 randomly selected days is less than the mean daily temperature by at least 2.1 F. Round the solution to four decimal places, if necessary. P(x less than by at least 2.1F)=