Assume that the mean systolic blood pressure of normal adults is 120 millimeters of mercury (mm Hg) and the standard deviation is 5.6 mm Hg. Assume the variable is normally distributed. (You may use R or appendices to support finding the probabilities. Make sure to provide transformations when appropriate.) a) If an individual is selected, find the probability that the individual's pressure will be between 120 and 121.8 mm Hg. b) If a sample of 30 adults is randomly selected, find the probability that the sample mean will be between 120 and 121.8 mm Hg. c) Is the answer to part (b) larger, smaller, or equal to part (a)? Why is this response the case? Justify your