find the probability that a student obtained less than 20 percent in the science test
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Step-by-step explanation:
Given :
Total number of students = 90
1)
Number of students obtained less than 20 marks are 7 members
Probability less than 20 marks = 7/90
2)
Number of students obtained 60 marks or above are
15 + 8 = 23 members
Probability 60 marks or above = 23/90 .
\bold{Answer: (1) \: 7/90 \: \: (2) \: 23/90}Answer:(1)7/90(2)23/90
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