04 Normal distribution changes 1Point For a normal distribution, a decrease in the mean shifts the curve to the left and a decrease in its standard deviation makes the curve narrower (and with a higher peak) around the mean. Save Answer 05 Normal distribution 'lPoint If an investment whose return is normally distributed increases its standard deviation by doubling it. Then the probability of a loss will also double. 0 True 0 False Save Answer 06 Chi-square 1 Point The chi-square distribution also depends on the number of degrees of freedom, similar to the t- distribution