Q1 of 69 Page 7

The following distribution gives the daily income of 50 workers of a factory:


Convert the distribution above to a less than type cumulative frequency distribution, and draw its ogive.


Now, taking upper class limits on x- axis and their respective frequencies on y-axis we can draw its ogive as follows:



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18

Find the mean, median and mode from the following table:

 19

100 surnames were randomly picked up from a local telephone directory and the frequency distribution of the number of letters in the English alphabets in the surname was obtained as follows:


Determine the median number of letters in the surnames. Find the mean number of letter in the surnames? Also, find the modal size of the surnames.

 2

Draw 'more than' ogive of the following distribution:

 3

Draw a less than type cumulative frequency curve for the following data and from the graph find the median: