EXAMPLE 7.10 In the United States, someone is sexually assaulted every two minutes, on average, according to a number of studies. Suppose the standard deviation is 0.5 minutes and the sample size is 100. Problem a. Find the median, the first quartile, and the third quartile for the sample mean time of sexual assaults in the United States. b. Find the median, the first quartile, and the third quartile for the sum of sample times of sexual assaults in the United States. c. Find the probability that a sexual assault occurs on the average between 1.75 and 1.85 minutes. d. Find the value that is two standard deviations above the sample mean. e. Find the IQR for the sum of the sample times.​