Exercise $3-67$ Algo

An Investment strategy has an expected return of $24$ percent and a standard deviation of $13$ percent. Assume investment returns are

bell shaped.

a$.$ How likely is it to earn a return between $11$ percent and $37$ percent? $($Enter your response as decimal values $($not percentages$)$

rounded to $2$ decimal places.$)$

Answer is complete but not entirely correct.

b$.$ How likely Is it to earn a return greater than $37$ percent? $($Enter your response as decimal values $($not percentages$)$ rounded to $2$

decimal places.$)$

Answer is complete and correct.

Probability

c$.$ How likely is it to earn a return below $-2$ percent? $($Enter your response as decimal values $($not percentages$)$ rounded to $3$ declmal

places.$)$

Answer is complete and correct.