(25) Let X be the lengths of a snake of a certain species, normally distributed with mean 11 inches. Suppose that 22.663% of the snakes of this species are less than 8 inches long. (a) Use the table of cumulative distribution function values for the standard normal to find the standard deviation of the lengths of snakes of this species. (b) Find the probability that a snake of this species is greater than 16 inches in length. (c) Find the probability that a snake of this species is between 9 and 12 inches in length.