Teaching CSIR NET Mock Test Series Mathematical Science Statistics & Exploratory Data Analysis Random Variables & Distribution Functions
Let X be a random variable whose distribution is symmetric about -2.
Which of the following are true?
1
If X is discrete and P(X = -2) = \(\frac{2}{3}\), then P(X > -2) = 1/6.
2
If X is discrete and P(X = -2) = \(\frac{1}{2}\), then P(X > -2) = 1/2.
3
If X is absolutely continuous, then P(X > -2) = 0.
4
If X is absolutely continuous, then P(X > -2) = 1/2.