OUT LINE
 HISTORY OF PROBABILITY
 Basic concepts of probability
 Where is probability used in real life?
 Classifications of Probability
 USEFULNESS IS THE CONCEPT OF
PROBABILITY

HISTORY OF
PROBABILITY
A gambler's dispute in 1654 led
to the creation of a mathematical
theory of probability by two
famous French mathematicians,
Blaise Pascal and Pierre de
Fermat. ... Because of the
inherent appeal of games of
chance, probability theory soon
became popular, and the subject
developed rapidly during the
18th century.
The story of probability is called The distribution .

Basic concepts of probability
A probability is a number that reflects
the chance or likelihood that a
particular event will occur.
Probabilities can be expressed as
proportions that range from 0 to 1,
and they can also be expressed as
percentages ranging from 0% to 100%.

Probability is widely used in all sectors in daily life like
sports, weather reports, blood samples, predicting the sex
of the baby in the womb, congenital disabilities, statics,
and many.
Where is probability used
in real life?

Classification of
probability
There are three major types of
probabilities:
 Theoretical Probability.
 Experimental Probability.
 Axiomatic Probability.

THEORETICAL PROBABILITY
Theoretical probability is a method to express the likelihood
that something will occur. It is calculated by dividing the
number of favorable outcomes by the total possible
outcomes. The result is a ratio that can be expressed as a
fraction (like 2/5), or a decimal

EXPERIMENTAL
PROBABILITY
The experimental probability of an event occurring
is the number of times that it occurred when the
experiment was conducted as a fraction of the total
number of times the experiment was conducted.

Axiomatic
Probability
Axiomatic Definition of Probability can
be defined as a set function
P(E) which assigns to every event” E “a
number known as the “probability of E”
such that,
The probability of an event P(E) is
greater than or equal to zero
P(E) ≥ 0
The probability of the sample space is
equal to one.
P(Ω) = 1

USEFULNESS IS THE
CONCEPT OF
PROBABILITY
Studying probability will help children to develop critical thinking
skills and to interpret the probability that surround us daily.
Students should begin by doing simple experiments like the coin
and dice toss.