NEED HELP IN HURRY

1. The way to overcome the infeasibility in the linear program model is to:

a) modify the constrinats

b) convert the model to non-linear model

c) modify the decision variables

d) change values of the coefficient

2. what method is use for evaluate performance of a classification algorithm?

a) association matrix

b) correlation analysis

c) performance matrix

d) classification matrix

3. When multiple optimal soltuions exist in a linear program

(a) the best solution is non-existent

(b) the best soution is one with the higher optimal value

(c) the best solution can be sub-optimal

(d) the best solution is likely the one that best satisfies the constraints

4. When classification is best used?

a) Associating characteristics between different data records

b) Organizing data into homogeneous groupings of similar characteristics

c) Predicting a categorical outcome of a new observed data record

d) Determining the cause of observed data response