Probability Biased and Unbiased || Lesson 23 || Probability & Statistics || Learning Monkey ||

Probability Biased and Unbiased
In this class, We discuss Probability Biased and Unbiased.
The reader should have prior knowledge of the measure of central tendency. Click Here.
Example: When we toss a coin, what is the probability of getting a head?
Probability means the chance of getting head.
The probability value is always between 0 -1.
Why is the probability value always between 0 -1?
Example: Wind is blowing high, and it is cloudy.
What is the Probability it is going to rain?
We say 80 percent chances to rain.
Always chances are written in percentages.
80% means 0.8.
So the probability value is always between 0 – 1.
100% chance is given as probability value 1.
Biased:
Person A has a friend B and a friend C.
A likes his friend B 70% and friend C 30%.
Both B and C invited A to a function.
What is the Probability A will go to the friend B function?
Here person A is biased toward B.
Showing more interest is what we call biased.
Chances person A going to B’s function is 70%.
UnBiased:
Showing no interest in any particular one.
Equal priority to all.
Example: Toss a coin
The coin is not showing any interest in the head or tail.
Another example:
The below diagram shows the dice
When we roll a dice, it may show 1, 2, 3, 4, 5, 6.
The below diagrams shows biased dice and coins.
The diamond shape dice are biased to some values.
Similarly, hand-made coins have more weight on the head.
So the chances of showing head are more.
These basics will help the reader to understand the following classes.


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