Stocks ADT and TDX have normally distributed expected returns of 12%. If the standard deviation of ADT is 26% and that of TDX is 11%, the latter is more likely than the former to have a negative return in any given quarter. True False. Stocks ADT and TDX have normally distributed expected returns of 12%. If the standard deviation of ADT is 26% and that of TDX is 11%, the latter is more likely than the former to have a negative return in any given quarter. True False