Table 10-4 a Company Has Decided to Use 0−1 Integer Programming to Programming

question 39

Multiple Choice

Table 10-4
A company has decided to use 0−1 integer programming to help make some investment decisions. There are three possible investment alternatives from which to choose, but if it is decided that a particular alternative is to be selected, the entire cost of that alternative will be incurred (i.e., it is impossible to build one-half of a factory) . The integer programming model is as follows:
-Table 10-4 presents an integer programming problem. Suppose you wish to add a constraint that stipulates that both alternative 2 and alternative 3 must be selected, or neither can be selected. How would this constraint be written?

• A) X₂ = X₃
• B) X₂ ≤ X₃
• C) X₂ ≥ X₃
• D) X₂ + X₃ = 1
• E) None of the above

---

Definitions:

Additive Effects

The influence of individual genes on trait variation where the overall effect is the sum of the effects from each allele.

Dominance Effects

Genetic interactions where one allele masks or suppresses the expression of another allele at the same locus.

G × E Interactions

Genetic and Environmental interactions, which describe how genetic makeup and environmental factors influence the phenotype or traits of an organism.

Phenotypic Variation

The observable differences in appearance, physiology, and behavior among individuals of the same species, resulting from genetic and environmental factors.