A share of stock with a beta of $1\mathrm{.}20$ now sells for $$45.$ Investors expect the stock to pay a year$-$

end dividend of $$3.$ The T$-$bill rate is $3\%$ and the market risk premium is $7\%.$ Suppose investors

actually believe that the stock will sell for $$50$ at year$-$end. Is the stock a good or bad buy? What

will investors do$?$