plz help with 4 and 5

D Question 4 2 pts Suppose an S&P 500 index fund delivered a return of 11% -1%, 10% and 5% over the past four years. Based on this information alone, what is the expected return for next year? Input your answer as a percentage with two decimal places. For example, if your result is 14.567, input 1457 1 pts Question 5 Suppone Hood Dreams stock delivered return of 10% -5% and 10 over tilf past three years What is the standard deviation of return Input your answer as a percentage with two decimal places. For example, it your result is 14.567, Input 1457