The marks obtained (out of 80 marks) by 40 students in a test of mathematics are given in the following table:
Marks obtained
0-20
20-30
30-40
40-50
50-60
60-70
70-80
No. of students
3
2
5
8
6
9
7
Find the probability of a student, chosen at random, getting
Less than 40 marks
50 or more marks
Answers
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0
Answer:
0-20
Step-by-step explanation:
this is answer can be shor
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