搜狗做题网求一道sat数学题In a survey,5000 students selected their usual meth
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求一道sat数学题
In a survey,5000 students selected their usual methods of communicating with friends from the following three options:calling (C),text messaging (T),or instant messaging (I).The Venn diagram above shows the results of the survey.How many students selected exactly two of the three methods of communicating?因为原图太难看清..我只好自己花了一个..各种不明白可以问我...
In a survey,5000 students selected their usual methods of communicating with friends from the following three options:calling (C),text messaging (T),or instant messaging (I).The Venn diagram above shows the results of the survey.How many students selected exactly two of the three methods of communicating?因为原图太难看清..我只好自己花了一个..各种不明白可以问我...
oth C and T 355
both C and I 463
both T and I 501
selected exactly two of the three methods are 355 + 463 + 501 = 1319
both C and I 463
both T and I 501
selected exactly two of the three methods are 355 + 463 + 501 = 1319
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