Digit designs manufactures high-quality gloves and other accessories. it already uses both computer-aided design and computer-aided manufacturing. unfortunately, the two systems cannot communicate with each other. william warmdigit, a production manager at digit designs, has heard about software that allows cad and cam to work together, and wants to learn more about it. william is interested in a. holistic internalization of operations.
b. linear programming software.
c. computer-integrated manufacturing.
d. complex systems integration.

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i.e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i.e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.