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Question: The graph represents the number of students, in each grade, who travel by bus to the XYZ middle school. Which grade has the least number of students who travel by bus? Steps to derive 1 The heights of the bars in the bar graph represent the number of students, who travel by bus to school, in grade-1, grade-2, grade-3, grade-4 and grade-5.
2 Note the heights of the bars for all the grades.
3 The height of the bar for grade-1 is 40, that for grade-2 is 30, that for grade-3 is 40, that for grade-4 is 20 and that for grade-5 is 50.
4 The number of students, who travel by bus to the XYZ middle school, are 40 in grade-1, 30 in grade-2, 40 in grade-3, 20 in grade-4 and 50 in grade-5.
5 The least number of students, who travel by bus to the school are in grade-4.
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