question i'm stuck on

According to a study done by UCB students, the height for Martian males is normally distributed with an Average of 68 Inches and a standard deviation of 2.3 inches. Suppose one Martian adult male is randomly chosen. Ley X= Height of individual. Round 4 decimal places where Possible.

A. what is the distribution of X? X~n(____ ,______)

B find the probability that the person is between 67.9 and 68.8 inches. ________

C. the Middle 30% of Martian heights lie between what two numbers?

Low:________ Inches High________ Inches