Answer:
Geometric Average return = 7.83%
Explanation:
First we need to find the missing value of data using Arithmetic mean formula
Arithmetic Mean = Sum of value / No of values
8.8% = Sum of Values / 4
Sum of Values = 8.8% x 4
Sum Values = 35.2%
Using Sum of Values we minus the remaining values in order to get the missing value of the data.
35.20% - 16.3% - 10.2%-(14.1%) = 22.80%
In order to get Geometric mean value we use geometric mean formula
G.M = 4 Sqrt(16.3% x 10.2% x -14.1% + 22.80%)
Geometric Mean = 7.83%