Asked by Anne

There are 12 girls and 9 boys in Mrs. Johnson's classroom. She said that if she randomly selects one student from her classroom the probability that it is a boy is 3/4. Which mistake did Mrs. Johnson make?

A. She divided the number of girls by the total number of students.

B. She divided the number of boys by the total number of students.

C. She divided the number of girls by the number of boys.

D. She divided the number of boys by the number of girls.
Answered by Ms. Sue
9/12 = 3/4

Answered by Anne
I am confused ms. sue i don't get it what is the answer
Answered by Anne
is the answer d then?
Answered by Ms. Sue
No.

Which of the answers shows 9 divided by 12?


Answered by Anne
no it is asking what is the probability not what you are saying . What he did was wrong
Answered by Ms. Sue
The mistake that Mrs. Johnson made was <u>C. She divided the number of girls by the number of boys. </u>
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