Which of the following is NOT an example of operating system?

In the Generalized Bus Interface Configuration given below, identify 1 and 2. 

Which of the following is NOT a known way for a user or program to interact with Operating System. 

The following var-cov matrix of market index M, stock S, and stock B:            |      M           S              B          M |     0.1        0.04        0.05          S  |                  0.2           0.06        B  |                                  0.3      Investor K invests $5,000 in Portfolio K with $500 in S and $4,500 in B.  Calculate the total risk of Portfolio K, the systematic risk of Portfolio K, and the unsystematic risk of Portfolio K. 

Business sellers are usually __________________ to disclose any problems the business may have.

Identify this commissure that connect the two cerebral hemispheres.

According to Markowitz, discuss all the information or variables that are needed to calculate the risk of a portfolio.  Of the several variables, which variable is the most important variable?  Explain.

Identify the membrane which the stereocilia of hair cells touch

Identify the abdominal wall muscle

  From Figure 2.1 above, calculate the bid-asked spread for T-bill with June 8, 2017 maturity date.