statistical question - A question that can be answered by collecting data that vary. More than one answer must be possible, measures of center - Mean, median, and mode, mean - The average that can be found by dividing the total of the data by the number of data items, median - The middle value of an ordered set of data. **If two values are in the middle, it is the mean of those two values, mode - The value that occurs most often in a data set, range - The difference between the greatest (maximum) and least (minimum) data values., box plot, frequency table, UQ or Q3 (upper quartile) - The median of the second half of an ordered set of data., LQ for Q1 (lower quartile) - The median of the first half of an ordered set of data., histogram,

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