Assume that the NASDAQ $100$ index has an annual average rate of return equal to $16$ percent $(16\%)$ and a

annualized standard deviation of its' rate of return $=25\%,$ and that the rate of return of the NASDAQ $100$

index is approximately normally distributed. Given these assumptions, what is the approximate probability

that the NASDAQ $100$ index will have an annual rate of return less than $16$ percent $(16\%)$ during the next

calendar year?

Assume that the NASDAQ $100$ index has an annual average rate of return equal to $16$ percent $(16\%)$ and a

annualized standard deviation of its' rate of return $=25\%,$ and that the rate of return of the NASDAQ $100$

index is approximately normally distributed. Given these assumptions, what is the approximate probability

that the NASDAQ $100$ index will have an annual rate of return less than $22$ percent $(41\%)$ during the next

calendar year?

Assume that the S&P $500$ index has an annual average rate of return equal to $10$ percent $(10\%)$ and a

annualized standard deviation of its' rate of return $=20\%,$ and that the rate of return of the S&P $500$ Index is

approximately normally distributed. Given these assumptions, what is the approximate probability that the

S&P $500$ index will have an annual rate of return greater than negative zero percent $(0\%)$ during the next

calendar year?