please make a clear and understandable solution. I wish you healthy days.

1-) Considering the price and probability values, first find and interpret the relative returns and standard deviation value. Evaluate A and B returns in terms of coefficient of variation? Returns A 7,40 6,30 5,25 5,10 returns B 110 130 125 95 probability 0,40 0,25 0,20 0,15