Help please

Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 6.3 inches and a standard deviation of 0.9 inches. X be the head breadth of a potential clientele. a. What is the distribution of X? X ~ ( --> Please show the following answers to 4 decimal places. b. If a client is randomly chosen, find the probability that his head breadth is below 4 c. If a client is randomly chosen, find the probability that his head breadth is between 5.8 and 6.3 inches. Please show the following answers to one decimal place. d. Due to financial constraints, the helmets will be designed to fit all men except those with head breadths that are in the smallest 2.1% or largest 2.1%. What is the minimum and maximum head breadths that will fit the clientele? Minimum and