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19. |
The set of data shows the number of times 20 students took public transportation last month. 1, 4, 5, 6, 6, 7, 7, 11, 11, 14, 15, 16, 16, 17, 17, 18, 19, 20, 22, 22 Make a frequency table using the intervals 0–6, 7–13, 14–20, 21–27. How many data values are in the interval 21–27? |