What is the range of this data set?
Correct answer: B. 11
- A. 15
- B. 11
- C. 20
- D. 9
Explanation
The range of a data set is the difference between the maximum and the minimum values.1950s →20 hurricanes1960s →15 hurricanes1970s →12 hurricanes1980s →17 hurricanes1990s →15 hurricanes2000s →19 hurricanes2010s →09 hurricanesArranging them in order:9, 12, 15, 15, 17, 19, 20The difference between the maximum and minimum value=20-9=11Therefore, the range is 11. Option B is the answer.
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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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