There were 20 students in a class here are their marks of a physics and a math test.
Physics marks- 3,13,14,14,20,26,26,28,29,32,34,36,37,42,47,47,48,54,56,59.
Math marks- 2,12,12,24,26,26,26,27,27,28,30,32,34,40,42,44,49,50,54,54.
If a dictinction is awarded to scores that are more than 50 marks, find the probability that a student chosen at random recieves at least one dictinction grade.
explain your answer please (:
2006-07-01
21:37:48
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7 answers
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asked by
rain-shadow
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