Q12 of 24 Page 97

Marks obtained by Insuvai in Mathematics in ten unit tests are listed below.


Based on this data find the probability that in a unit test Insuvai get


(i) more than 95% (ii) less than 95% (iii) more than 98%

(i) More than 95%


No. of unit test in which she scored more than 95% = 7


Total number of unit test = 10



(ii) Less than 95%


No. of unit test in which she scored less than 95% = 3


Total number of unit test = 10



(iii) More than 98%


No. of unit test in which she scored more than 98% = 2


Total number of unit test = 10



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