geography
1900
2020
northeast 28%
midwest 35%
south 32%
west 5%
northeast 17%
midwest 21%
south 38%
west 24%
what region saw the biggest population shift between 1900 and 2020?
northeast
south
midwest
west

Question

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "US Demographics", "Population Changes" ], "new_concepts": [ "Demographic Shifts" ], "current_concepts": [ "US Demographics", "Population Changes", "Demographic Shifts" ] } ## Calculate absolute changes for each region $$ \begin{aligned} &\text{Northeast: } |17\% - 28\%| = 11\%\ &\text{Midwest: } |21\% - 35\%| = 14\%\ &\text{South: } |38\% - 32\%| = 6\%\ &\text{West: } |24\% - 5\%| = 19\% \end{aligned} $$ ## Identify the maximum shift $$ \max(11\%, 14\%, 6\%, 19\%) = 19\% \quad (\text{West}) $$

Northeast

South

Midwest

West

{ "subject": "Social Science", "question_type": "Multiple Choice", "knowledge_point": [ "Social Science", "Geography", "Population Changes" ] }

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Question

Explanation:

Calculate absolute changes for each region

Identify the maximum shift

Answer: