CUET Preparation Today
CUET
-- Mathematics - Section A
Probability
A random variable x has the following probability distribution.
In the above table, $P[x-1\, or \, x=4]$ is equal to :
0.05
0.01
0.1
0.5
The correct answer is Option (3) → 0.1
$∑P(X)=1⇒α+β+0.9=1$
$⇒α+β=0.1$
so P(X=1 or X=4) = α + β
= 0.1