1.

250 students of class X of a school appeared in a test of 100 marks and the data about the marks secured is as below. Marks secured0−2021−4041−6061−8081−100Number of students2035656070 Find the probability of selecting at random, a student who scored (i) not more than 40 (ii) more than 60 (iii) more than 80 [ 2 MARKS ]

Answer»

250 students of class X of a school appeared in a test of 100 marks and the data about the marks secured is as below.
Marks secured02021404160618081100Number of students2035656070

Find the probability of selecting at random, a student who scored

(i) not more than 40
(ii) more than 60
(iii) more than 80 [ 2 MARKS ]



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