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[hline multicolumn6|c" A random variable...

[hline multicolumn6|c" A random variable "X" has the following "],[multicolumn5|c" probability distribution: "],[hline X,0,1,2,3,4,5,6,7],[hline P(X),0,k,2k,2k,3k,k^(2),2k^(2),7k^(2)+k],[hline multicolumn4|c" Find "P(X<3)]

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