# exponential decayWatch

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#1
I have an assignment where I’m required to plot graphs with data from a dice rolling website to show radioactive exponential decay. My graphs are too straight and have no curve compared to the ones I’ve seen online. I have done the dice rolling thing 4 times now and seen the same results. Does anyone know what I’m doing wrong or can explain exponential decay in more detail?
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6 days ago
#2
are you doing the experiment right?
you are meant to remove any die that roll over a fixed number
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#3
(Original post by Meowstic)
are you doing the experiment right?
you are meant to remove any die that roll over a fixed number
Hello
It does not state that in my assignment brief it says to always have 100 dice
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6 days ago
#4
(Original post by Kat123*)
Hello
It does not state that in my assignment brief it says to always have 100 dice
In a simple picture of radioactive decay, once an atom has "died" it does not get to do that again. For your dice experiment, you should start with 100, but when a throw says a dice has "died", take it out of the pile so you get less than 100 next time and so on. That's where the exponential behaviour comes from.
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#5
(Original post by Mr Wednesday)
In a simple picture of radioactive decay, once an atom has "died" it does not get to do that again. For your dice experiment, you should start with 100, but when a throw says a dice has "died", take it out of the pile so you get less than 100 next time and so on. That's where the exponential behaviour comes from.
So after the first roll, if 20 dice have ‘decayed’ I then use 80 the next time? Of course this makes sense but i was following my brief- I will give this a try. Thank you
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