According to a study conducted by CESI Debt Solutions, 75% of married people hide purchases from their partner. In a random sample of 15 married people, find and interpret. a) Exactly 11 married couples hide purchases from partner. b) At least 12 married couples hide purchases from partner. c) Fewer than 12 married couples hide purchases from partner. d) The probability that between 7 and 10 married couples hide purchases from partner