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Cumulative Density Function

The CDF of a variable X, also known as the X distribution function, represents likelihood that X will have a value less than or equal to X

Owais Siddiqui
13 Oct 2022
1 min read

What is Cumulative Density Function (CDF)?

The CDF of a variable X, also known as the X distribution function, represents the likelihood that X will have a value less than or equal to X. Of course, continuous statistical aspects have a role in this. The monotonicity of a CDF is its distinguishing feature. Monotonic growing, to be precise. This means that the probability will always rise over time.

Example of CDF:

The formula of CDF is:
F(x) = P(X ≤ x)

F(x) = function of X

P = probability that an X will have a value less than or equal to x

x = real value variables

Why is CDF important?

Whenever analysts want to assist the possibility of more than one event happening together, CDF plays a critical role. It gives the probability of less than and equal to combining several events making analysts’ decisions more informed.

Owais Siddiqui

Expert Tutor at Learnsignal

Qualified professional with years of experience in teaching and helping students achieve their accounting qualifications.

View all posts by Owais Siddiqui

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