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Mathematics 18 Online
OpenStudy (anonymous):

WILL GIVE EVERYONE WHO ANSWERS CORRECTLY A MEDAL!!!!!!!!!!!!!!!!!!!!!!

OpenStudy (anonymous):

Correctly

OpenStudy (anonymous):

hello

OpenStudy (anonymous):

ok

OpenStudy (paki):

post question here...

OpenStudy (anonymous):

heres the question

OpenStudy (anonymous):

which of the following is an example of independant events?

OpenStudy (anonymous):

rolling 2 number cubes

OpenStudy (anonymous):

selecting marbles from a bag without replacement after each draw

OpenStudy (anonymous):

choosing and eating a peice of candy from a dish and then choosing another peice of candy

OpenStudy (anonymous):

or pulling a card from a deck when others have pulled several

OpenStudy (mathmale):

@Noahs686: Please understand that we OpenStudy members are allowed neither to ask for direct answers nor to provide them. Read the Code of Conduct for more detail on that. Please do NOT start your posts with "WILL GIVE EVERYONE WHO ANSWERS CORRECTLY A MEDAL!!!!!" If you're going to post answer choices, do that all at one time, please, and do some thinking on your own first. Which of the possible answers seems least likely to be correct, and why? What does "independent" mean in this context?

OpenStudy (mathmale):

So, @Noahs686, what are your thoughts regarding the correctness or wrongness of each of the four possible answers, and why?

OpenStudy (anonymous):

@mathmale: I have done my own thinking first but i do not unde rstand that is why i asked

OpenStudy (anonymous):

i also cannot say which is wrong or right because i dont understand

OpenStudy (anonymous):

what do you think

OpenStudy (mathmale):

Ask questions to clear up your misunderstanding. You say you've done your own thinking? Please post some of those thoughts here. What does the word "independent" mean? What does "independent" mean when we're discussing "events" in probability?

OpenStudy (anonymous):

@mathmale i know independent means alone or by itself

OpenStudy (mathmale):

Yes, such as a young person with a job who is no longer dependent upon his parents. What does "independent event" mean in probability?

OpenStudy (anonymous):

i dont know can you explain

OpenStudy (mathmale):

What study resources have you? textbook? online reading materials? Have you consulted any of these?

OpenStudy (anonymous):

yes and i cant find it in my vocab

OpenStudy (mathmale):

Where specifically have you looked for "independent events?"

OpenStudy (anonymous):

i am with connexus and i'm home schooled online and my math book doesn't explain it gives problems that go along with my lesson. And that is why i am confused

OpenStudy (anonymous):

and i have looked in my glossary. but this common core stuff is not understandable at all and i cannot find what i look for.

OpenStudy (anonymous):

which of the following is an example of independant events? rolling 2 number cubes selecting marbles from a bag without replacement after each draw choosing and eating a peice of candy from a dish and then choosing another peice of candy or pulling a card from a deck when others have pulled several

OpenStudy (mathmale):

You have listed four possible answers. Which of them do you think is least likely to be correct, and why?

OpenStudy (anonymous):

choosing and eating a peice of candy from a dish and then choosing another peice of candy

OpenStudy (anonymous):

wait or would that be independant

OpenStudy (anonymous):

@mathmale

OpenStudy (mathmale):

What do YOU think, and why?

OpenStudy (anonymous):

i woud think it would be indapendant because it doesnt affect each other @mathmale

OpenStudy (anonymous):

sorry for the wrong spelling my computer sometimes skips

OpenStudy (mathmale):

If you had 6 different pieces of candy on a plate, your chances of picking any particular piece are 1 in 6. If you choose one and eat it, you'd have only 5 pieces left; the chances of picking any particular one of those is now 1 in 5, not 1 in 6. Are these events dependent or independent, and wh?

OpenStudy (anonymous):

dependent because there are more than one

OpenStudy (anonymous):

@mathmale

OpenStudy (anonymous):

i dont uderstand because all of them have to do with more than one thing @mathmale

OpenStudy (mathmale):

More than one what? Actually, Noah, these two events are dependent because one (choosing and eating one piece of candy) clearly affects the next event, which would be choosing a piece of candy from the remaining five.

OpenStudy (mathmale):

Yes, definitely: when we talk about dependence or independence, we ARE talking about two or more events. Yes.

OpenStudy (mathmale):

which of the following is an example of independant events? rolling 2 number cubes selecting marbles from a bag without replacement after each draw choosing and eating a peice of candy from a dish and then choosing another peice of candy or pulling a card from a deck when others have pulled several Please look over these 4 situations. Which one (or which ones) seem to describe DEPENDENT events? We'll eliminate that one / them.

OpenStudy (anonymous):

i think selecting marbles from a bag is dependent

OpenStudy (anonymous):

and rolling two number cubes @mathmale

OpenStudy (mathmale):

It's important that you spell out the entire set of circumstances: "selecting marbles from a bag without replacement after each draw." Every time you select a marble from the bag and do not replace it, y ou have changed the situation; the probability of drawing a certain marble from the bag is different from before, so yes, this is a case of dependent probability. Eliminate this choice. Now you have 3 answers to choose from. Which one will you eliminate next, and why?

OpenStudy (anonymous):

pulling a card from a deck when others have pulled several because there are several situations on this so it is dependent

OpenStudy (anonymous):

@mathmale

OpenStudy (mathmale):

You're on the right track, but your language needs to be more precise. Each time you pull a card from a deck and do not replace it, you have changed the probability of picking any particular card next time. So, this is another case of dependent events. What action are you going to take?

OpenStudy (anonymous):

i think i'm going with rolling a number cube 2 times

OpenStudy (anonymous):

@mathmale

OpenStudy (anonymous):

i think its rolling a number cube 2 times

OpenStudy (mathmale):

What do you mean by "going with?" It's important that you use the language given in the problem statement.

OpenStudy (anonymous):

i pick it

OpenStudy (anonymous):

i pick rolling a number cube 2 times

OpenStudy (anonymous):

help please

OpenStudy (mathmale):

one roll or toss of the cube is INDEPENDENT of every other roll or toss of the cube. Therefore, these two events (roll the first time, roll the second time) are independent. Which is the correct answer choice?

OpenStudy (mathmale):

Hope this discussion has helped you. The correct answer should be obvious now. I'm sorry our discussion has been so spread out, but Open Study is being heavily used right now and is correspondingly slow. See you again here on OpenStudy.

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