Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (anonymous):

Given an experiment, can you answer questions about the probability?

OpenStudy (anonymous):

@Mehek14

Mehek (mehek14):

yes

OpenStudy (anonymous):

can you give me questions about probability? @Mehek14

Mehek (mehek14):

like make my own?

OpenStudy (anonymous):

sure.. or you can just get ones from the internet :)

Mehek (mehek14):

ok.. A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?

OpenStudy (anonymous):

ok now i need you to help me figure out the answer because i dont know how to answer probability questions :(

Mehek (mehek14):

you have 2 red and 3 green so 5 are not blue over the total 7 so 5/7 are not blue

OpenStudy (anonymous):

oh ok give me more questions :)

Mehek (mehek14):

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

OpenStudy (anonymous):

ok now explain :)

Mehek (mehek14):

multiples of 3 or 5 = 3, 6 , 9, 12, 15, 18, 5, 10, 20

Mehek (mehek14):

so 9

Mehek (mehek14):

9/20 are multiples of 3 or 5

OpenStudy (anonymous):

ok thanks you :)

OpenStudy (anonymous):

can you explain expected success :)

Mehek (mehek14):

not sure about that one

OpenStudy (anonymous):

ok :)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!