The frequency distributions are of two types namely Observed frequency distribution and Theoretical frequency distribution.

**Probability
Distributions**

The frequency
distributions are of two types namely Observed frequency distribution and
Theoretical frequency distribution. The distributions which are based on actual
data or experimentation are called the Observed Frequency distribution. On the
other hand, the distributions based on expectations on the basis of past
experience are known as Theoretical Frequency distribution or Probability
distribution.

Johann Carl Friedrich
Gauss (30 April 1777 – 23 February 1855) was a German mathematician and
physicist who made significant contributions to many fields in mathematics and
sciences. Gauss had an exceptional influence in many fields of mathematics and
science, and is ranked among history’s most influential mathematicians In
discrete probability distribution we will discuss Binomial and Poisson
distribution and the Normal Distribution is a continuous probability
distribution.

The following are the
two types of Theoretical distributions :

1. Discrete distribution 2. Continous distribution

Tags : Probability Distributions , 12th Business Maths and Statistics : Chapter 7 : Probability Distributions

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12th Business Maths and Statistics : Chapter 7 : Probability Distributions : Introduction | Probability Distributions

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