Beta of a portfolio. The beta of four stocks$-$G$,$ H$,$ I, and J$$are $0\mathrm{.}45,0\mathrm{.}81,1\mathrm{.}22,$ and $1\mathrm{.}61,$ respectively. What is the beta of a portfolio with the following weights in each asset: $?$

What is the beta of portfolio $1?$

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