Data Analytics Math Modeling Midterm

Data Analytics Math Modeling Midterm

CYBR 190

Isac (lvl 7)
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What is the essence of decision analysis in problem-solving?

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Last updated

3 months ago

Date created

Mar 26, 2024

Cards (50)

Unsectioned

(50 cards)

What is the essence of decision analysis in problem-solving?

Front

Making informed choices in uncertain scenarios.

Back

What is the balance-of-flow rule in a transshipment problem with Total Supply < Total Demand?

Front

Flow balance with surplus supply.

Back

What type of variable does the Simplex method add to convert ≤ constraints to = constraints?

Front

Slack variables.

Back

What characteristic do binding constraints have?

Front

Active shadow prices of zero.

Back

What is needed to convert problem constraints to standard form?

Front

Convert them to equality constraints.

Back

How does a surplus in Total Supply compared to Total Demand affect a transshipment problem?

Front

No impact.

Back

How does a variable with a final value equal to its bound and zero reduced cost affect the problem?

Front

No impact on the problem.

Back

What is the balance-of-flow rule in a transshipment problem with Total Supply < Total Demand?

Front

Flow balance with surplus supply.

Back

What kind of constraint in a minimization problem implies a binding greater than or equal to (≥)?

Front

A binding constraint with a ≥ sign.

Back

What does the equipment replacement problem exemplify in network problems?

Front

Network optimization.

Back

How could a network be modified if demand exceeds supply?

Front

Modify network parameters or increase capacity.

Back

 In a transshipment problem, what does a surplus in Total Supply compared to Total Demand imply?

Front

Surplus in supply

Back

What network problem involves creating lube oil, gasoline, and diesel fuel at refineries?

Front

Refinery network problem.

Back

What does the balance of flow constraint for node 3 (Refinery 1) represent in an oil refinery problem?

Front

Represents the flow of crude oil to Refinery 1.

Back

What node type represents a factory in a network shipping model?

Front

 Factory node.

Back

How does a surplus in Total Supply compared to Total Demand affect a transshipment problem?

Front

No impact

Back

What does the balance of flow constraint for node 3 (Refinery 1) represent in an oil refinery problem?

Front

Represents the flow of crude oil to Refinery 1.

Back

What is the balance of flow constraint for node 3 (Refinery 1) in an oil refinery problem?

Front

Represents the flow of crude oil to Refinery 1.

Back

How does adding 10 units of a resource with a shadow price of 5 affect an objective function value of 150?

Front

Increases by 50

Back

 What network problem does the equipment replacement problem exemplify?

Front

Transportation problem.

Back

What is the objective of creating lube oil, gasoline, and diesel fuel at refineries in a network problem?

Front

Production optimization

Back

How are constraints in network flow problems determined?

Front

Number of network parameters.

Back

What node type represents a factory in a network shipping model?

Front

Factory node

Back

What are the originating and terminating nodes in the shortest path problem?

Front

Source and sink nodes.

Back

What is the objective of creating lube oil, gasoline, and diesel fuel at refineries in a network problem?

Front

Production optimization

Back

What does the balance of flow constraint for node 3 (Refinery 1) represent in an oil refinery problem?

Front

Represents the flow of crude oil to Refinery 1

Back

What is the essence of decision analysis in problem-solving?

Front

Making informed choices in uncertain scenarios.

Back

 What variable type is added by the Simplex method to convert ≤ constraints to = constraints?

Front

Slack variable.

Back

What is the essence of decision analysis in problem-solving?

Front

Making informed choices in uncertain scenarios

Back

What type of node represents a factory shipping items through the network?

 

Front

Supplier node.

Back

What determines the number of constraints in network flow problems?

Front

Number of network elements.

Back

What is the balance of flow constraint for node 3 (Refinery 1) in an oil refinery problem?

Front

Represents the flow of crude oil to Refinery 1.

Back

What type of constraint in a minimization problem indicates a binding ≥?

Front

Binding constraint with a ≥ sign.

Back

What determines the number of constraints in network flow problems?

Front

Number of network elements.

Back

What is the balance-of-flow rule in a transshipment problem with Total Supply < Total Demand?

Front

Flow balance with surplus supply

Back

What determines the number of constraints in network flow problems?

Front

Number of network elements.

Back

What is the representation of a factory that ships items through a network?

Front

Factory node.

Back

What is the essence of decision analysis in problem-solving?

Front

Making informed choices in uncertain scenarios.

Back

Which formula calculates Net Flow values in a spreadsheet model?

Front

 Balance-of-flow formula.

Back

How does a variable with a final value equal to its bound and zero reduced cost affect the problem?

Front

No impact on the problem.

Back

What does the equipment replacement problem illustrate in network problems?

Front

Network optimization.

Back

What changes when the right-hand side of a constraint is altered?

Front

 Feasibility or optimality.

Back

What determines the number of constraints in network flow problems?

Front

Number of network elements.

Back

What is the essence of decision analysis?

Front

Evaluating uncertain outcomes.

Back

What does the equipment replacement problem exemplify in network problems?

Front

Network optimization.

Back

What type of constraint in a minimization problem indicates a binding ≥?

Front

Binding constraint with a ≥ sign.

Back

How does a variable with a final value equal to its bound and zero reduced cost affect the problem?

Front

No impact on the problem.

Back

What does the equipment replacement problem exemplify in network problems?

Front

Network optimization.

Back

What indicates a variable with a final value equal to its simple bound and zero reduced cost?

 

Front

Non-binding variable.

Back

What does the constraint X13 + X23 − X34 ≥ 50 indicate?

Front

Flow from nodes 1 and 2 to node 3 is at least 50.

Back