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Mathematics 20 Online
OpenStudy (anonymous):

Medal In a anatomy class, a set of exams earned the following grades: 2 A's, 11 B's, 18 C's, 9 D's, and 3 F's. If a single student's exam is chosen from this class, what is the probability that it received a C?

OpenStudy (anonymous):

the ratio of the number of C's to the total number in the class

OpenStudy (anonymous):

how would you figure about the ratio

OpenStudy (anonymous):

how many C's?

OpenStudy (anonymous):

18

OpenStudy (anonymous):

how many total in the class?

OpenStudy (anonymous):

76

OpenStudy (anonymous):

sorry 43

OpenStudy (anonymous):

whewe!~

OpenStudy (anonymous):

then it is \[\frac{18}{43}\] as your probability

OpenStudy (anonymous):

so thats the answer?

OpenStudy (anonymous):

not that hard, was it?

OpenStudy (anonymous):

can we reduce it to lowest terms?

OpenStudy (anonymous):

no it was easy

OpenStudy (anonymous):

you would reduce to lowest terms for sure, but i think 43 is a prime number, so you have nothing to reduce

OpenStudy (anonymous):

so its just 18/43?

OpenStudy (anonymous):

yes, that is all

OpenStudy (anonymous):

thank you :)

OpenStudy (anonymous):

yw

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