SOLUTION: If two different students are randomly selected from a class of 12 boys and 8 girls, what is the probability that both students are girls. (express your answer as a common fraction

Question 652883: If two different students are randomly selected from a class of 12 boys and 8 girls, what is the probability that both students are girls. (express your answer as a common fraction.) show all work
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If two different students are randomly selected from a class of 12 boys and 8 girls, what is the probability that both students are girls.
----
# of ways to succeed: 8C2 = (8*7)/(1*2) = 28
------------
# of possible outcomes: 20C2 = (20*19)/(1*2) = 190
----
P(2 girls) = 28/190 = 0.1474
===============================
Cheers,
Stan H.
RELATED QUESTIONS
Two students from a class of 12 boys and 8 girls are chosen at random. What is the... (answered by FrankM)

Two students are selected at random from a class of 8 boys and 9 girls. what is the... (answered by checkley79)

Two students are to be selected at random from a class with 10 girls and 12 boys. What is (answered by ikleyn)

A class has 12 boys and 4 girls. If three students are selected at random from the... (answered by ewatrrr)

A kindergarten class has 14 girls and 8 boys. If two children are randomly selected from (answered by stanbon)

A class consists of 10 boys and 15 girls. Two of the boys and five of the girls are... (answered by rothauserc)

A class contains 8 boys and 14 girls. Two students are to be selected as student council... (answered by Theo)

In a math class, 12 out of 15 girls are freshmen and 11 out of 15 boys are freshmen. What (answered by stanbon,edjones)

SAMPLING WITHOUT REPLACEMENT: Question: the teacher of the class with 8 boys and 12... (answered by ewatrrr)