Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Probability

Question:

The probability distribution of a random variable X is given below:

X 0 1 2 3
P(X) k $\frac{k}{2}$ $\frac{k}{4}$ $\frac{k}{8}$

Then value of $P(X≤ 2)+ P(X > 2)$ is

Options:

0

$\frac{1}{4}$

$\frac{1}{2}$

1

Correct Answer:

1

Explanation:

The correct answer is Option (4) → 1

$P(X≤ 2)+ P(X > 2)$ = Probability Distribution of all random variables

$=1$