Dexter has constructed the following hypothesis: People in countries that have a higher average temperature always drink more water (per person). Data was collected and the following visualisation created: Which of the following statements is true?

Question

BlackTom AI · Accepted Answer

To evaluate the statement, we need to compare the pattern of water consumption with average temperature across the countries shown.
Option a: 'The data is not relevant to the hypothesis.' The data directly relates to the hypothesis by pairing average temperature with water consumption per person, so it is relevant; this option is incorrect.
Option b: 'The data partially supports the hypothesis.' The data shows some alignment in higher-temperature countries (Mexico and Australia) with higher water use, but it also includes a country (Spain) with a higher temperature and relatively low water consumption, which weakens the claim. Since there is at least one clear counterexample, this option is not fully accurate.
Option c: 'It is unclear if the data supports or refutes the hypothesis.' The graph provides explicit values that can be interpreted; the presence of a counterexample makes the conclusion clearer rather than ambiguous, so this option is not the best description.
Option d: 'The data refutes the hypothesis.' Given that Spain has a higher average temperature than the United Kingdom but lower water consumption, the pattern does not hold consistently across countries, providing a refutation to the claim that higher temperature always means more water consumed per person.
In summary, the dataset shows inconsistency with the assertion, primarily demonstrated by the Spain example, which means the correct overall interpretation is that the data refutes the hypothesis.}

MUF0052 ICT Unit 2 - Semester 2, 2025 7.7 Quiz: Data science - Supporting a hypothesis

Dexter has constructed the following hypothesis: People in countries that have a higher average temperature always drink more water (per person). Data was collected and the following visualisation created: Which of the following statements is true?

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