Probability in Math

Introduction to Probability

In math,Probability is used to get the feasible outcomes in an event. It is definite as the ratio between the numbers of positive outcomes to the total number of outcomes. The importance of probability lies only between 0 and 1. The Conditional probability and  the Theoretical probability is the types of  the probability in math.


Example1:


In math the examples of probabilities is as follows.

1)In a vehicles parking area 200 vehicles are parked. There are 50 are cars, 40 are vans and the remaining are lorries. If all vehicles are similarly possible to leave, find the probability in math of.

a) First leaving the lorry.

b) First leaving the van.

c) First leaving the car.

Solution:

a) Let s be the sample space and A be the event of a lorry leaving first.

n(S) =200

n(A)= 200-50-40= 110

probability of a lorry leaving first:

P(A)= 110/200

=11/20

b) Let B be the event of a van leaving first

n(S)=200

n(B) =40

Probability of a van leaving first:

P(B)=40/200

= 4/50

c) Let c be the event of a car leaving first

n(S)=200

n(C)=50

Probability of a car leaving first:

P(C)=50/200

=5/40.

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Example2:


In math, the another example of probability is as follows,

2)An analysis was taken on 20 groups at a college to find the total number of left-handed students in each class.