In a survey a group of men, the heights in the 20-29 age group were normally distributed with mean of 67.2 inches and a standard deviation of 2.0 inches. A study participant is randomly selected. What is the probability that a study participant has a height less than 67 inches? Probability the participant has a height between 67-71 inches?Probability the height is greater than 71 inches?Is it unusual?