The average return of the Hollenbeck stock is 4%.
The average return of the Luzzi Edit stock is 6%
The standard deviation of the Hollenbeck stock is 19.67%.
The standard deviation of the Luzzi Edit stock is 17.72%.
The average return can be determined by adding the returns together and dividing it by the number of years.
The average return of the Hollenbeck stock = (7 + 20 - 7 + 5) / 4 = 4%
The average return of the Luzzi stock = (-3 + 20 + 7) = 6%
Standard deviation is used to determine how the values in a group differs from the mean of the values in the group. It is a measure of variation.
The standard deviation of the Hollenbeck stock = √(4 - 7)² + (20 - 4)² + (-7 -4)² + (5 - 4)² = 19.67%
The standard deviation of the Luzzi Edit stock = √(-3 -6)² + (20 - 6)² + (7 - 6)² + (0 - 6)² = 17.72%
To learn more about standard deviation, please check: https://brainly.com/question/26201837