You are going to form a portfolio with stocks A & B with the following information: Stock Expected Return Standard Deviation wi A 10% 30% 0.2 B 20% 40% 0.8 What is the portfolio’s standard deviation

portfolio's standard deviation = 0.3256

Explanation:

Stock       Expected Return       Standard Deviation            Wi

A                 10%                                30%                               0.2

B                 20%                               40%                               0.8

covariance = [(10% - 10%) x (20% - 20%)] / (2 - 1) = 0

portfolio's standard deviation = (stock A's Wi² x variance) + (stock B's Wi² x variance) + (2 x covariance x weight A x weight B)

portfolio's standard deviation = √{(0.2² x 0.09) + (0.8² x 0.16) + 0} = √(0.0036 + 0.1024) = √0.106 = 0.3256

answer; the above statement is half right, but mayo was not known as the father of scientific management..so the above is ( w taylor was known as the father of scientific

answer'; i believe the correct answer is (15,000) workers a year are treated for injuries caused by jacks, lifts or jack stands;