The overhead reach distances of adult females are normally distributed with a mean of 195 cm and a standard deviation of 7 8 cm a Find the probability that an individual distance is greater than 208 40 cm b Find the probability that the mean for 20 randomly selected distances is greater than 193 20 cm c Why can the normal distribution be used in part b even though the sample size does not exceed 30 a The probability is 0 0429 Round to four decimal places as needed b The probability is Round to four decimal places as needed