Given the following data on marks: Marks 40-49 50-59 60-69 70-79 80-89 90-99 Number of students 12 30 24 20 12 2 if grouping method is used then mode will be: a) 60.5. b) 61.5 c) 62.5 d) 63.5
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C)it will be the answer c)
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