The given cumulative frequency curve represents number of employees and their salary in anorganisation.50,000Rstoequalorthanlessearningemployeesofnumber35,000RstoequalorthanlessearningemployeesofnumberThe given ratio for this curve will be equal toA. 1:9B. 5:32C. 7:10D. 2:9

Derive the corresponding cumulative frequencies and using the graph paper at the centre ofthe exam booklet construct an Ogive (cumulative frequency curve) of the data.

Cumulative frequency is used to calculate:

Form the cumulative frequency distribution

Find the median income of the following frequency distribution:Weekly Income(Rs.)0 –10001000 –20002000 –30003000 –40004000 –50005000 –6000Frequency 250 190 100 40 15 5

17. The cumulative relative frequency for a given class is defined to be (a) the proportion of values preceding the given class. (b) the proportion of values up to and including the given class. (c) the proportion of values for the given class. (d) the proportion of values below the given class.