ou have a portfolio with the following weights: $13\%$ in Stock A$,52\%$ in Stock B$,$ and $35\%$ in Stock C$.$ The stocks$$ betas are $0\mathrm{.}82,1\mathrm{.}37,$ and $1\mathrm{.}66,$ respectively.

a$.(12\mathrm{.}5$ pts$.)$ What is your portfolio$$s beta?

b$.(12\mathrm{.}5$ pts$.)$ What is the systematic risk in your portfolio based on the beta calculated above? Assume the market$$s return is $12\%.$