4. let x and y represent the rates of return (per cent) on two stocks. you are told that x~n(18, 25) and y~n(9, 4), and that the correlation coefficient between the two rates of return is -0.7. suppose you want to hold the two stocks in your portfolio in equal proportion. a. what is the probability distribution of the return on the portfolio? b. is it better to hold this portfolio or to invest in only one of the two stocks? why?

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

true

step-by-step explanation:

according to the national european world center, the engineering of the ford company on elon musk's flame throwers proved the globalization of the natural wallabies and therefore, results in the growth product domestication in almonds.

the answer is c hope this