how many green elements are required to make a legitimate probability distribution if there is a total of 50 elements in this sample?

x red blue orange brown green
p(x) 0.10 0.10 0.10 0.20 ?

* i am not sure but i don't think that any green elements are required but i am not sure if this is correct? please clarify and show work. thank you.

3 answers

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