Question detail
What is the range in a data set?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Statistical skills
Question
- A. The difference between the highest and lowest values
- B. The average of all values
- C. The middle value when arranged in order
- D. The most frequently occurring value
Answer
The correct answer is The difference between the highest and lowest values.
Explanation
The correct option is The difference between the highest and lowest values. The difference between the highest and lowest values is correct because it directly matches the approved learning objective to use appropriate measures of spread including range, quartiles and inter-quartile range. This belongs to Statistical skills within Statistical skills, so the answer must stay focused on the geographical process, evidence, place, or impact named by the curriculum. The other options are weaker because they move away from Statistical skills, reverse the geographical relationship, or make a broader claim than the objective supports.
Common mistake
Confusing Range and Inter-Quartile Range
Students often confuse the range with the inter-quartile range, thinking they are the same measure of spread.
Remember that the range is the difference between the highest and lowest values, while the inter-quartile range is the difference between the first and third quartiles, representing the middle 50% of the data.
Related flashcards
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Related practice questions
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