{"ok":true,"question":{"id":182150,"question_uuid":"08004430-9cc2-47fe-8590-4c25c2831010","job_id":9,"source_file":"沪教版/八下/周琼玟Q_18978751881_940.pdf","source_page_start":1,"source_page_end":1,"source_bbox":"[303.07, 650.08, 565.26, 664.12]","subject_code":"math","grade_level":"SENIOR","tree_code":"KT_SENIOR_MATH_STANDARD","question_type":"fill_blank","canonical_json":"{\"year\": null, \"blocks\": [{\"text\": \"频数分布直方图的平均数=________________\", \"type\": \"text\"}, {\"type\": \"answer\", \"blocks\": [{\"type\": \"math_inline\", \"latex\": \"\\\\frac{\\\\sum (组中值 \\\\times 频数)}{\\\\sum 频数}\"}]}, {\"type\": \"solution\", \"blocks\": [{\"text\": \"根据《核心知识点》第2条，频数分布直方图求平均数的步骤为：先确定各组组中值，再提取对应频数，计算总数量（组中值\", \"type\": \"text\"}, {\"type\": \"math_inline\", \"latex\": \"\\\\times\"}, {\"text\": \"频数之和）与总频数（频数之和），最后用总数量除以总频数得到平均数。\", \"type\": \"text\"}]}], \"source\": {\"bbox\": [303.07, 650.08, 565.26, 664.12], \"file\": \"沪教版/八下/周琼玟Q_18978751881_940.pdf\", \"regions\": [{\"bbox\": [303.07, 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\"根据《核心知识点》第2条，频数分布直方图求平均数的步骤为：先确定各组组中值，再提取对应频数，计算总数量（组中值×频数之和）与总频数（频数之和），最后用总数量除以总频数得到平均数。\", \"answer\": \"\\\\frac{\\\\sum (组中值 \\\\times 频数)}{\\\\sum 频数}\", \"confidence\": 1.0, \"handout_chars\": 267}","created_at":"2026-11-10T12:37:11"},{"id":9449720,"import_question_id":182150,"audit_type":"CRITIC","auditor_name":"critic","status":"PASS","score":1.0,"input_snapshot":"来源答案: || 盲解:\\frac{\\sum (组中值 \\times 频数)}{\\sum 频数}","result_json":"{\"ok\": true, \"issues\": [], \"merged\": true, \"confidence\": 1.0}","created_at":"2026-11-10T12:37:11"},{"id":9449721,"import_question_id":182150,"audit_type":"SYMBOLIC","auditor_name":"symbolic-auditor","status":"PASS","score":0.9,"input_snapshot":"答案:\\(\\frac{\\sum (组中值 \\times 频数)}{\\sum 频数}\\) || 盲解:\\frac{\\sum (组中值 \\times 频数)}{\\sum 频数}","result_json":"{\"checks\": [], \"detail\": {\"reason\": \"盲解与来源答案互相包含\"}, \"status\": \"PASS\", \"applicable\": 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