A college reported that 40% of its population is male. Nine students are selected at random. : The mean is . The standard deviation is (Round to the nearest hundredth, if necessary.) . The shape of the distribution is . Use the probability distribution probabilities. positively skewed P close to symmetric n X 0.1 0.4 0.5 0.6 0.7 0.75 0.8 negatively skewed