February 21, 2017

Homework Help: maths

Posted by Sharon on Thursday, March 10, 2011 at 1:44am.

The probabilities of a student getting grade A, B, C and D are 0.2, 0.3, 0.15 and 0.35 respectively. Then the probability that the student gets
1) At least C grade is __________
2) At most C grade is ___________

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