Bar graph scale antha tricky em kaadu, nanna. First, data lo highest value chusi, scale ni round number ki set cheyali, like 10 or 20 per line. Nenu 12th lo marks poyinappudu, scale ni 7 ga pettanu, graph antha chikka ga unde, examiner ki clear ga kanapadale. So, proper ga round chesi pettali, clarity kosam. "Platform number 4 ki train vastundi..." annattu, scale kuda clear ga undali.
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