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When there is variation in data, there are many different answers to a statistical question, as your answer must take this variation into account. Frequently, answers to statistical questions are given in the form of intervals -- ranges of values for data. Here are two common ways to use intervals to answer statistical questions:
1. | Naming the interval in which all the data are located; that is, from the minimum data value (Min) to the maximum data value (Max). For example, in the Brand X raisin-count data, the interval is 25 to 31. |
2. | Naming an interval with the highest concentration of data; that is, an interval with little variation that contains a lot of data. For example, in the raisin-count data, a large proportion (14/17) of the Brand X raisin counts are between 26 and 29 (inclusively); this interval is 26 to 29. |
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