Answer:
d. 81
Explanation:
E(number of order) = E(X1) + E(X2) + 21 -4
                                 = 12 + 12 + 17
                                 = 41
Therefore, The store should order 81 . 
 
        
             
        
        
        
Answer:
$7073.68 
Explanation:
Data provided in the question:
Worth of portfolio = $15,000
Amount invested in stock A = $6,000
Beta of stock A = 1.63
Beta of stock B = 0.95
Beta of portfolio = 1.10
Now,
Beta portfolio = ∑(Weight × Beta) 
let the amount invested in Stock B be 'x'
thus,
1.10 = [($6,000 ÷ $15,000 ) × 1.63] +  [( x ÷ $15,000 ) × 0.95 ]
or
1.10 = 0.652 + [( x ÷ $15,000 ) × 0.95 ]
or
0.448 = [( x ÷ $15,000 ) × 0.95 ]
or
x = ( 0.448 × $15,000 ) ÷ 0.95
or
x = $7073.68 
 
        
             
        
        
        
Answer: Progressive tax policy
Explanation: In a progressive tax policy the rate of tax increases with the amount of taxable income, thus, making it possible to tax the people with higher income high tax and the lower section of the society a low level of tax.
The concept of progressive tax policy is based on the concept of ability to pay and not necessity to pay.
Thus, from the above we can conclude that right option is A.
 
        
             
        
        
        
Answer:
Discouraged; are not 
Marginally attached; are not 
Employed; are
Explanation:
Those workers who have had a job in past but are currently unemployed and are not currently looking for work because they were not able to find job are called discouraged workers. 
They believe they will not find a job now so have stopped looking. These workers are not included in the labor force.
Marginally attached workers are those workers who are not employed but are not looking for work because of a number of reasons such as illness, school, responsibility, etc. These workers are also not included in labor force. 
Those workers who would like to have full-time job but are employed part-time are considered employed. These workers are included in the labor force.