An investor can design a risky portfolio based on two stocks, a and b. stock a has an expected return of 21% and a standard deviation of return of 39%. stock b has an expected return of 14% and a standard deviation of return of 20%. the correlation coefficient between the returns of a and b is .4. the risk-free rate of return is 5%. the standard deviation of returns on the optimal risky portfolio is 25.5%

answer; closing the loop;

answer; intellectual property protection;

among other factors, composers started writing dynamic markings in their scores because "new instruments allowed for more dynamic ranges and contrast."

dynamics allude to the loudness or softness of music. dynamics offer an approach to demonstrate articulation in sheet music. they to drive the enthusiastic substance of music through volume and force. maybe you could alter both the volume and the shading profundity on your screen at the same time. we can likewise think about the force side of elements as the quality of a note. a few notes are intended to be played delicately and gently, while others are intended to be played all the more firmly.  

some dynamics markings have a letter 'm,' which remains for mezzo, signifying 'medium.' so a mezzo piano unique stamping resembles this (mp) and intends to play medium calm, while a mezzo specialty dynamic resembles this (mf) and intends to play medium loud.

answerboth the short run phillips curve and the aggregate demand and aggregate supply model