Aproject has a 0.44 chance of doubling your investment in a year and a 0.56 chance of halving your investment in a year. what is the standard deviation of the rate of return on this investment? (do not round intermediate calculations. round your answer to 2 decimal places.)

Which one of the following statements is true? ddt does not prevent disease from passing from agricultural animals to humans. cost was a major factor in the united states government's decision to ban ddt. many african governments concluded that the potential long-term health effects of ddt were not as serious as the immediate problem of insect control. ddt cannot accumulate in the fat of animals. the ddt ban in the united states has made it very difficult to control agricultural insect pests.