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Difficulty: EasyConditional Filtering and Selection

The table below presents operational metrics for six regional renewable energy facilities:

FacilityEnergy SourceCapacity (MW)Operational Efficiency (%)Storage Available
AlphaSolar4588%Yes
BetaWind6075%No
GammaHydro5092%Yes
DeltaSolar3082%No
EpsilonWind5584%Yes
ZetaHydro7078%Yes

A plant manager needs to select facilities that satisfy at least one of the following criteria:
- Criterion 1: Energy Source is Wind AND Capacity is greater than 50 MW.
- Criterion 2: Storage Available is "Yes" AND Operational Efficiency is at least 85%.

Which of the following facilities meet the manager's criteria? Select all that apply.

  1. AlphaAnswer
  2. BetaAnswer
  3. C
    Delta
  4. EpsilonAnswer
  5. E
    Zeta

Answer

The facilities that meet the criteria are Alpha, Beta, and Epsilon.
Alpha qualifies under Criterion 2 because it has storage available and an operational efficiency of 88% (>= 85%). Beta qualifies under Criterion 1 because its energy source is Wind and its capacity is 60 MW (> 50 MW). Epsilon qualifies under Criterion 1 because its energy source is Wind and its capacity is 55 MW (> 50 MW).

Step-by-Step Solution

1
Evaluate each facility against Criterion 1 (Energy Source = Wind AND Capacity > 50 MW).
Beta (Wind, 60 MW) and Epsilon (Wind, 55 MW) satisfy Criterion 1.
Both facilities use Wind energy and have capacities strictly above 50 MW.
2
Evaluate remaining facilities against Criterion 2 (Storage Available = Yes AND Operational Efficiency >= 85%).
Alpha (Storage = Yes, 88% Efficiency) satisfies Criterion 2. Gamma also satisfies Criterion 2, while Delta and Zeta fail both criteria.
Alpha meets both required conditions of Criterion 2.
3
Combine the results for the options provided (Alpha, Beta, Delta, Epsilon, Zeta).
Alpha, Beta, and Epsilon satisfy at least one criterion.
Selection requires satisfying Criterion 1 OR Criterion 2.

Key Concept

Evaluating compound logical conditions (AND/OR conjunctions) across multiple table attributes.
Estimated Time:1m 15s
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Topics

Conditional Filtering and Selection

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