SOLUTION: 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

Question 379159: 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)
0.14(red)
0.16(blue)
0.28(orange)
0.24(brown)

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi,

P(red) + P(blue) + P(orange) + P (brown) = .14 + .16 + 28 + .24 = .82

P(green) = 1 - .82 = .18

50 elements in this sample:  Let n represent the number of green elements

n/50 = .18  

 n = 9, the number of green elements

 

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