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【OG20-P148-17题】
During a recent storm ,9 neighborhoods experienced power failures of durations 34,29,27,46,18,25,12,35,and 16 minutes ,respectively .For these 9 neighborhoods ,what was the median duration ,in minutes ,of the power failures ?
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从小到大排列：12,16,18,25,27,29,34,35,46
中位数是：27
赤木青帝
瞎了……这种题错了活该只能考790
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2019-12-08 21:19:12
emily666回复赤木青帝
哈哈
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2020-03-10 00:24:14
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问题求解PS
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点击上传问题求解PS -16754
【OG20-P148-15题】Over the past 7 weeks, the Smith family had weekly grocery bills of $74, $69 ,$64, $79, $64, $84, and $77. What was the Smiths’ average(arithmetic mean) weekly grocery bill over the 7-week period?
问题求解PS -16747
【OG20-P163-114题】The table shows partial results of a survey in which consumers were asked to indicate which one of six promotional techniques most influenced their decision to buy a new food product .Of those consumers who indicated one of the four techniques listed ,what fraction i...
问题求解PS -16745
【OG20-P167-134题】10 ，4 ，26 ，16What is the median of the number shown ?
问题求解PS -16744
【OG20-P148-17题】During a recent storm ,9 neighborhoods experienced power failures of durations 34,29,27,46,18,25,12,35,and 16 minutes ,respectively .For these 9 neighborhoods ,what was the median duration ,in minutes ,of the power failures ?
问题求解PS -16740
【OG20-P146-3题】During a trip that they took together ,Carmen ,Juan ,Maria ,and Rafael drove an average (arithmetic mean )of 80 miles each. Carmen drove 72 miles ,Juan drove 78 miles ,and Maria drove 83 miles .How may miles did Rafael drive ?
问题求解PS -16754
【OG20-P148-15题】Over the past 7 weeks, the Smith family had weekly grocery bills of $74, $69 ,$64, $79, $64, $84, and $77. What was the Smiths’ average(arithmetic mean) weekly grocery bill over the 7-week period?
问题求解PS -16747
【OG20-P163-114题】The table shows partial results of a survey in which consumers were asked to indicate which one of six promotional techniques most influenced their decision to buy a new food product .Of those consumers who indicated one of the four techniques listed ,what fraction i...
问题求解PS -16745
【OG20-P167-134题】10 ，4 ，26 ，16What is the median of the number shown ?
问题求解PS -16744
【OG20-P148-17题】During a recent storm ,9 neighborhoods experienced power failures of durations 34,29,27,46,18,25,12,35,and 16 minutes ,respectively .For these 9 neighborhoods ,what was the median duration ,in minutes ,of the power failures ?
问题求解PS -16740
【OG20-P146-3题】During a trip that they took together ,Carmen ,Juan ,Maria ,and Rafael drove an average (arithmetic mean )of 80 miles each. Carmen drove 72 miles ,Juan drove 78 miles ,and Maria drove 83 miles .How may miles did Rafael drive ?
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