[計量] 不好意思想問一題數學

作者: elyshih85 (w._.ei)   2017-09-06 12:30:29
各位好,想請問這題大家都怎麼想的呢?
In a survey, 130 people were asked how many movies they had seen in the
preceding year. Their responses varied from 0 to 30 movies. The graphs above
show two different summaries of the samesurvey results. How many people
responded that they had seen 11 or 12 movies?
https://i.imgur.com/7KCE6jg.jpg
A.10 B.12 C.15 D.20 E.23
此題答案是給E,請問是為什麼呢?(˙A˙);
作者: JinCheng5566 (金城五洗髮精)   2017-09-06 18:15:00
不是A嗎 QQ

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