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The range of a random variable X is {0,1...

The range of a random variable X is `{0,1,2}`. Given that `P(X=0)=3c^(3), P(X=1)=4c-10c^(2),P(X=2)=5c-1`
i) Find the value of c
ii) `P(X lt1),P(1 ltXle2)" and "P(0ltXle3)`

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