part a and b please

These roling average annualized returns are shown below for each index over the past 24 months. Explain, Do not round intermediate calculations. Round vour answers to two decimal places. The volut inder: The Chowth thide: The appears to have outperformed the over the 24 -menth period by differential series and compare it to your answers from part (a). Do not round intermediate calculations. Round vour answers to two decimal places. Negative values, if any, should be indicated by a minus sign. If your answer is zero, enter 0. The averese urue inturn in the deferential series is the difference in the arahmetic means