35.7k views
23 votes
Espaol

A math class has 7 girls and 3 boys in the seventh grade and 4 girls and 4 boys in the eighth grade. The teacher randomly selects a seventh grader and an
eighth grader from the class for a competition. What is the probability that the students she selects are both girls?
Write your answer as a fraction in simplest form.
M

User Walmik
by
5.0k points

1 Answer

6 votes

Answer:

61%

Explanation:

7g+3b= 7th grade

4g+4b= 8th grade

70% chance of a girl getting picked from 7th grade

50% chance of a girl getting picked from 8th grade class

11g+7b= both classes

about 61% chance for both classes to be a girl picked?

User Ebelisle
by
5.1k points