Draw a cumulative frequency curve and cu...

Draw a cumulative frequency curve and cumulative frequency polygon for the following frequency distribution by less than method. Age (in yrs). 0-9 10-19 20-29 30-39 40-49 50-59 60-69 No. of Person 5 15 20 23 17 11 9

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Find the mean of the following frequency distribution using step-deviation method. Class 0-10 10-20 20-30 30-40 40-50 Frequency 7 10 15 8 10

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Construct a combined histogram and frequency polygon for the following frequency distribution : {:("Calss Interval","Frequency"),(10-20,3),(20-30,5),(30-40,6),(40-50,4),(50-60,2):}

Find the mean of the following frequency distribution, using step-deviation method: Class 0-10 10-20 20-30 30-40 40-50 Frequency 7 12 13 10 8

Draw a cumulative frequency curve (ogive) for each of the following distributions : {:("Class interval ", 10-19, 20-29 ,30-39, 40-49, 50-59),("Frequency " ," "23, " " 16, " " 15, " " 20, " " 12):}

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