Q35 of 40 Page 1

The following table gives production yield per hectare (in quintals) of wheat of 100 farms of a village :

Change the distribution to 'a more than' type distribution and draw its ogive.


OR


The median of the following data is 525. Find the values of x and y, if total






Plot points (40, 100) (45, 96) (50, 90) (55, 74) (60,54) (65, 24) on a graph



OR





Given Median =525


Then, median Class = 500-600


the lower limit (l) = 500


cumulative frequency of the class preceding 500-600(cf) = 36 + x


frequency of the median class 500-600 = 20,


class size (h) = 100


Total frequencies (n) = 100


So, 76 + x + y = 100


⇒ x + y = 100 – 76


⇒ x + y = 24 …(i)



Using the formula,,we have




⇒ 25 = (14 – x) × 5


⇒5 = 14 – x


⇒ x = 9


Putting the value of x in eq. (i), we get


⇒ 9 + y = 24


⇒ y = 24 – 9


⇒ y = 15


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