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#1 Re: Formulas » Homework help? Deriving an expression for the probability... » 2017-03-11 19:57:13

Okay, I can see that now. I have neber heard of a quincunx so I looked more into it using this page: link removed by moderator

It says the forumla to solving the probability of a machine like this is binomial distribution. I will try making an expression witht aht and then I will let you know how it goes.

#2 Re: Formulas » Homework help? Deriving an expression for the probability... » 2017-03-11 18:30:30

Now that you mention it, yes. And thank you for the fix.

#3 Re: Formulas » Homework help? Deriving an expression for the probability... » 2017-03-11 17:17:31

Oh yes, sorry for not including the number of balls. It's 40.

And this is what I have so far:

IMG_5439.jpg

And for task one (the task before this one), I had to do an experiment using a pinball machine with 5 cups. (40 balls too):

IMG_5440.jpg

#4 Formulas » Homework help? Deriving an expression for the probability... » 2017-03-11 15:00:30

hootyhoo
Replies: 7

Hi, all. I am not sure I put this put in the right category, but I'll ask anyways.

The problem I am stuck on tells me to consider a small machine with only two cups. And for that small machine I have to find out the probability of a ball landing in each cup. Then, I have to repeat this process for other machines with 3, 4, and 5 cups. From there I have to use any pattern I see and derive an expression for the probability of landing in the i^th cup from the left in a machine with n cups.

We also have to right the probabilities as fractions (not simplified) so we can find patterns.

Does anyone mind helping me with this?

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