Consider the following table, which gives a security analyst$$s expected return on two stocks and the market index in two scenarios:

Scenario Probability Market Return Aggressive Stock Defensive Stock

$10\mathrm{.}57\%2\mathrm{.}2\%5\mathrm{.}0\%$

$20\mathrm{.}5152512$

Required:

a$.$ What are the betas of the two stocks? $($Round your answers to $2$ decimal places.$)$

b$.$ What is the expected rate of return on each stock?