Q. 5

The following table gives the height of trees:

Draw ‘less than’ ogive and ‘more than’ ogive.

Answer :

Less than method, it is given that:

Now we mark the upper class limits along x-axis and cumulative frequency along y-axis. Thus, we plot the points: (7,26); (14,57); (21,92); (28,134); (35,216); (42,287); (49,341); (56,360)

More than method: We will prepare the cumulative frequency table by more than method as given below:

Now we mark,

On x-axis lower class limit and on y-axis Cumulative frequency

Thus, we plot graph as (0,360); (7,334); (14,303); (21,263); (28,226); (35,144); (42,73); (49,19)

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