SOLUTION: A class of 45 students took an exam. There was 5 A's 11B's 19C's 6D's and the rest failed. If one student is selected at random, what is the probability that the students grade was

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Question 816105: A class of 45 students took an exam. There was 5 A's 11B's 19C's 6D's and the rest failed. If one student is selected at random, what is the probability that the students grade was a C or above?
Answer by algebrahouse.com(1659) About Me  (Show Source):
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number of successes
------------------------ = probability
number of possibilities

C or above would be 5 A's, 11 B's and 19 C's
total possibilities is 45 students

35 at C or above
---------------- = probability
45 total students

7
-- = probability {reduced}
9

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