Following is the age distribution of a group of students. Draw the cumulative frequency polygon, cumulative frequency curve (less than type) and hence obtain the median value.

The following observations relate to the height of a group of persons. Draw the two types of cumulative frequency polygons and cumulative frequency curves and determine the median. Height in cms Frequency 140-143 143-146 146-149 149-152 152-155 155-158 158-161 161-164 164-167 167-170 170-173 173-176 176-179 179-182 3 9 26 31 45 64 78 85 96 72 60 43 20 6

Cumulative Frequency Distribution

The following is the distribution of weights (in kg) of 40 persons. Construct a cumulative frequency distribution (of the less than type) table for the data above.

Draw a frequency polygon from the following frequency distribution

The following table shows the distribution of heights of a group of factory workers. Determine the cumulative frequencies.

Draw a frequency polygon from the following data:

The following table shows the distribution of the heights of a group of factory workers : Draw the 'less than' cumulative frequency curve on graph paper . Use 2 cm = 5 cm height on one axis and 2 cm = 10 workers on the other {:(" Ht. (cm): ", 150- 155, 155-160, 160-165, 165-170, 170-175, 175-180, 180-185),(" No. of workers " ," "6, " "12, " "18, " "20, " "13, " "8, " "6):}

The cumulative frequency proceeding to the median class for the following data is

In a frequency distribution, ogives are graphical representation of (a) Frequency (b) Relative frequency (c) Cumulative frequency (d) Raw data

Explain the difference between a frequency distribution and a cumulative frequency distribution.