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Mathematics 8 Online
OpenStudy (agent47):

Probability question

OpenStudy (agent47):

You roll a die until you get all the numbers 1-6. What is the probability that your last roll is a 6. How do I even approach this?

OpenStudy (dumbcow):

It doesn't matter when you roll the 6 , the probability is always the same .... 1/6

OpenStudy (anonymous):

Well, there are 6 members. You have about a one in six chance to roll a one, two, etc. so, you have a 1/6 chance of rolling a six.

OpenStudy (agent47):

No conditions or anything? Like the first 5 had to have been 1-5?

OpenStudy (anonymous):

Then one 1/6

OpenStudy (anonymous):

1/6 always

OpenStudy (agent47):

I'm overthinking this. You're right guys, this was so simple... argh

OpenStudy (anonymous):

Happy to help!

OpenStudy (anonymous):

It's because each roll is independent of each other. Everytime you roll, you still have the other five numbers possibly coming up

OpenStudy (anonymous):

Zelda...why didn't you help me on my question?

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