
Jon S. answered 05/11/21
Patient and Knowledgeable Math and English Tutor
G = girl
A = got an A
want to find P(A|G) = P(A and G)/P(G) = 0.35/0.45 = 0.78
Sarah L.
asked 05/11/21A class consists of 55% boys and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% of the class are girls and scored an A on the test.
If a student is chosen at random and is found to be a girl, the probability that the student scored an A is ___.
Jon S. answered 05/11/21
Patient and Knowledgeable Math and English Tutor
G = girl
A = got an A
want to find P(A|G) = P(A and G)/P(G) = 0.35/0.45 = 0.78
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