Question 7 1 pts Why do return distributions follow Normal distribution pretty closely? returns are affect by numerous unanticipated factors returns are calculated from prices which are themselves normally distributed 0 0 because news arrivals are normally distributed because investors' decision making is normally distributed Question 8 1 pts Excess kurtosis above zero means that: the outcomes in the middle of the distribution are less "spiky" than predicted by the normal the extreme outcomes are more likely than predicted by normal distribution the extreme outcomes are less likely than predicted by normal distribution