A science class has 3 girls and 3 boys in the seventh grade and 3 girls and 7 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 boys?
Write your answer as a fraction in simplest form.
1 answer
for the 7th grade, the probability is 3 out of a total of 6 students. for 8th grade, there are 7 out of a total of 10 students. 3/6 times 7/10 is 7/20.
1 answer