Question

Which of the following can be the probability distribution of a random variable ?

• A.

  \(X\)	1	2	3
  \(P(X)\)	-0.5	0.5	0.1

• B.

  \(X\)	1	2	3	\(4\)	\(5\)
  \(P(X)\)	\(0.1\)	\(0.4\)	\(0.05\)	\(-0.2\)	\(0.2\)

• C.

  \(X\)	\(1\)	\(2\)	\(3\)	\(5\)
  \(P(X)\)	\(0.2\)	\(0.3\)	\(0.2\)	\(0.2\)

• D.

  \(X\)	\(0\)	\(1\)	\(2\)
  \(P(X)\)	\(0.4\)	\(0.2\)	\(0.4\)

Answer 1

The Correct Option is D

The correct option is (D):