Your portfolio contains Stocks X and Y with the following dollar amount of investments:

Stock

X

Y

Investment

$$5,000$

$$15,000$

The portfolio has a beta of $1\mathrm{.}2.$ If you add Stock Z into your portfolio with an investment of $$10,000,$ what is the beta of your new portfolio if Stock Z has a beta equal to $3?$

Question $9$Select one:

a$.$

$1\mathrm{.}6$

b$.$

$1\mathrm{.}8$

c$.$

$1\mathrm{.}4$

d$.$

$2\mathrm{.}0$