Q6 of 77 Page 32

If the probability distribution of a random variable X is as given below:

Write the value of P (X ≤ 2).


The probability distribution of X is:



We Know that



Therefore


⇒ c+2c+3c+4c=1




P(X≤2)=P(X=1)+P(X=2)


⇒ c+2c


⇒ 3c




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