Register
In a class of 30 students, 5 have a brother and 20 have a sister. There are 2 students who have a brother and a sister. What is the probability that a student who has a brother also has a sister?
498,150 views
43 votes
43 votes
In a class of 30 students, 5 have a brother and 20 have a sister. There are 2 students who have a brother and a sister. What is the probability that a student who has a brother also has a sister?

User Radek Lopatecki
by
3.1k points

1 Answer

19 votes
19 votes

Answer: 2/5

Explanation:

In a class of 30 students, 5 have a brother and 20 have a sister. There are 2 students-example-1
User Mrpatg
by
2.6k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers

Other Questions

Can anybody tell me what’s going on here?
Granola costs $1.76 per pound. Write and solve an equation to determine the number of pounds p of granola that can be purchased with $7.04. The equation is: The value of x is
Evalute 8a -1+0.5b when a =1/4 and b= 10 how dose this work i need help..
PLZ needed now plz URGENT!
HELP PLEASE, I NEED THE ANSWER QUICKLY
Link Copied!