Comprehension

The following questions refer to the ”Ethan Hunt” scenario, which provides information across multiple tabs: a bar chart of Vulnerability Indices, a map of Day 1 Cases, a propagation model formula, and a table of city vulnerabilities (instability, hospital capacity, etc.).

Part A: For each of the following statements, select Yes if the statement accurately reflects the information given in the tabs. Otherwise, select No.

Question: 1

A city with the highest collapse threshold doesn't have the lowest vulnerability index.

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When analyzing exponential growth over multiple periods, the growth rate (multiplier) is typically more influential on the final outcome than the initial starting value. A city with a significantly higher rate will likely overtake a city with a higher starting value but a lower rate.
Updated On: Sep 30, 2025
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Solution and Explanation

Step 1: Identify the city with the highest collapse threshold from the table. The highest value is 3000, which corresponds to London.
Step 2: Find the vulnerability index (VI) for London from the bar chart. London's VI is 4.5.
Step 3: Find the lowest vulnerability index among all cities. The lowest VI value on the chart is 4.5, shared by London and Prague.
Step 4: Evaluate the statement. The city with the highest collapse threshold (London) *does* have the lowest vulnerability index (4.5). The statement claims it "doesn't have" the lowest VI, which is false.
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Question: 2

The city with the second-lowest hospital surge capacity has political and economic instability at 'high'.

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When analyzing exponential growth over multiple periods, the growth rate (multiplier) is typically more influential on the final outcome than the initial starting value. A city with a significantly higher rate will likely overtake a city with a higher starting value but a lower rate.
Updated On: Sep 30, 2025
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Solution and Explanation

Step 1: Identify the city with the second-lowest hospital surge capacity from the table. Sorting the capacities: Cagliari (40), Brindisi (45), Catania (50), etc. The second-lowest is Brindisi.
Step 2: Check the political and economic instability levels for Brindisi from the table. Political Instability is Medium and Economic Instability is High.
Step 3: Evaluate the statement. The city (Brindisi) does not have both instabilities at 'High'. Therefore, the statement is false.
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Question: 3

Vulnerability index is directly proportional to the severity of the economic and political instability.

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When analyzing exponential growth over multiple periods, the growth rate (multiplier) is typically more influential on the final outcome than the initial starting value. A city with a significantly higher rate will likely overtake a city with a higher starting value but a lower rate.
Updated On: Sep 30, 2025
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Solution and Explanation

Step 1: To test for direct proportionality, the ratio of VI to a measure of instability must be constant. Let's assign numerical values: Low=1, Medium=2, High=3.
Step 2: Compare two cities with the same instability levels.

Cagliari: Political=High (3), Economic=High (3). Total instability score = 6. VI = 6. Ratio = 6/6 = 1.
Athens: Political=High (3), Economic=High (3). Total instability score = 6. VI = 8. Ratio = 8/6 \(\approx\) 1.33.
Step 3: Evaluate the statement. Since two cities with the same instability score have different VIs, the ratio is not constant. Therefore, the relationship is not a direct proportion. The statement is false.
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