Maseks obtained by students of class lX in
mathematics are given in a table:
mark=
0-20
20-40
40-60
60-80
80-100
Number of students
8
12
30
30
10
1)find the probability that a student gets
than 40% in a test
2)find the probability that a student gets
more than 80%
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Answer:
bhai ye kesa question h
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