Probability- A Theoretical Approach
Chapter Name : Probability |
Sub Topic Code : 104_10_15_02_01 |
Topic Name : Probability- A Theoretical Approach |
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Sub Topic Name : Probability- A Theoretical Approach |
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Introduction
Bill says "Don't buy the avocados here; about half the time, they're rotten". Bill is expressing his belief about the probability of an event — that an avocado will be rotten — based on his personal experience.
Pre-Requisites:
Idea about chances, experimental probability.
Activity:
You roll a six-sided die whose sides are numbered from 1 through 6. Find the probability of (a) rolling a 4, (b) rolling an odd number, and (c) rolling a number less than 7.
Real Life Question:
There is a match between India and Australia. What is the probability that India will win the toss?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Theoretical Probability | The Theoretical Probability (as known as classical probability) of an Event (E), written by P(E), is defined as P(E)= (Number of outcomes favorable to E)/(Number of all possible outcomes of the experiment) |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|
Real life uses :
A theoretical probability is used to predict the results of a game, outcomes of experiments involving multiple trials.
Practical examples around us
| Examples | Explainations |
|---|---|
| Rolling of a dice | We can foretell the probability of the occurrence of a specific number. For e.g. The number on die is 4. Total outcomes : S = {1,2,3,4,5,6}, E = 4, P(E) = 1?6 |
What you learn in Theory:
What is theoretical probability?
What you learn in Practice:
How to find the theoretical probability for an event.