Answer:
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 
 
        
             
        
        
        
Yes. because turning it on mainly is too hard for exp. your shower turns from hot 2 cold
        
             
        
        
        
It would be salary because its the same pay rate no matter if you work extra hrs or not
        
                    
             
        
        
        
The appropriate response is differentiation positioning. Differentiation positioning includes looking for a less aggressive, littler market specialty in which to find a brand. Situating and separation are firmly related promoting methodologies. Situating is your procedure for passing on what makes your organization or items greater, diverse or superior to those offered by contenders.