题目信息

Twenty-five adults reported the amount of time each spent exercising during a particular week. The results are summarized in the graph as follows: 5 respondents reported exercising for less than 1 hour, 3 respondents reported exercising for at least 1 hour but less than 2, and so on.
Based on the given information, use the drop-down menus to most accurately complete the following statements.The least possible value for the mean of the numbers of hours of exercise reported for the weeks is
The number of respondents who exercised on average less than one-half hour per day during the wee is between inclusive.
参考答案及共享解析

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已选答案:
正确答案:
3.12;
10 and 14;
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