According to a magazine, as of January 2018, 11% of chief executive officers were women. Complete parts a through based on a random sample of 12 CEOs What is the probability that one corporate officer was female? The probability is (Round to four decimal places as needed) b. What is the probability that fewer than four corporate officers were female? The probability is Round to four decimal places as needed.) What is the probability that more than two corporate officers were female? The probability is (Round to four decimal places as needed.) d. What are the mean and standard deviation for this distribution? The mean number of females is (Type an integer or a decimal. Do not round.) The standard deviation of the number of females is (Round to four decimal places as needed.)