Four members of an online community construct a diagram to show whether they have ever met in real life. Each person is represented by a dot and two dots are jained together with a line if those two people have ever met in real life. The diagram looks like this:Each member of the group then makes a table, showing with a tick when two people have ever met in real life. Shaded cells show people linked to themselves. Which person's table is wrong?
Correct answer: B. C
- A. A
- B. C
- C. B
- D. D
Explanation
To determine which person's table is incorrect, compare each person's table to the diagram. Each dot represents a person, and lines between dots indicate that those individuals have met. C's table is the only one that does not correctly correspond to the connections shown in the diagram, indicating that C's table has an error. The other tables, A, B, and D, align with the diagram, showing correct connections.
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About Scientific Reasoning
Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.
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