During flu season, a sample of temperatures is taken of geriatric patients. It is found that the sample is normally distributed with a mean of 36.5C and a standard deviation of 0.84C. Based on these observations, the nursing staff decides to mark any patient with a temperature over 38C as a potential carrier of the flu.

What percentage of patients do they expect to mark?

A healthy body temperature is between 36.1C and 37.2C . If we take a sample of 17 geriatric patients, what is the probability that the mean temperature of the 17 patients is between 36.1C and 37.2C?