<PRE><B>Question 611587</B>
How many green elements are required to make this a legitimate probability distribution if there are a total of 50 elements in this sample?
x red blue orange brown green

P(x) 0.10 0.10 0.18 0.22

red is above 0.10 and so on. Green has no number beneath it. 
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0.40 below green
Need 20 green elements: 0.40*50 = 20
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Cheers,
Stan H.</PRE>