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The horizontal axis -axis) of a histogram of marks usually shows:

Class 9Bar Graphs and HistogramsStatistics and Probability
  • AClass intervals of marks
  • BFrequencies
  • CClass marks only
  • DNames of students

Step-by-Step Solution

In a histogram, class intervals are marked along the -axis and frequencies along the -axis.
Answer: A) Class intervals of marks

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