Marks 2 3 4 5 6 7 8 9
No. of students 3 4 1 0 4 5 2 1
The table above shows the distribution of marks of students in a test. Find the probability of passing the test if the pass mark is 5?
  • A 3/5
  • B 2/5
  • C 7/20
  • D 1/5
jamb 2009mathematics

The correct answer is A. 3/5

According to the table, the total number of students is 3 + 4 + 1 + 0 + 4 + 5 + 2 + 1 = 20. The number of students who passed the test (i.e., scored at least 5 marks) is 4 + 5 + 2 + 1 = 12. Therefore, the probability of passing the test is 12/20 = 3/5. So, the correct answer is A. 3/5.

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