Statistics, Nothing in life is guaranteed to you in this part We are in everything we do Opportunities to get successful results from business medicine to weather provides a quantitative description of probability. It provides a bridge between description and conjecture Statistics.

## Probabilistic vs Statistical Reasoning

Suppose I know the exact car ratio in California. Then I can find probably the first car I see on the street A Ford. This is probabilistic logic like mine. Know the population and predict the sample. Now suppose I do not know The rate of car production in California, though I would like to evaluate them. I’m watching Random car samples on the road and then There is an estimate of the proportions. This is statistical logic.

## What is Probability?

- We used charts and numerical measurements. Describe the typical sample datasets.
- We used charts and numerical measurements. Describe the typical sample datasets.
- An experiment is a process that Gets observations.
- An event is the result of an investigation, Usually in capital letters.

## Statistics – Experiments and Events

- If two events are reciprocal, when One event happens, the other cannot and vice versa On the other hand.
- Called an indestructible event A simple event.
- Indicated by e with a contribution.
- Every simple event is assigned Probability, measuring the number of times it occurs.
- A set of all the simple cases of an experiment Called the sample space, s.

## The Probability of an Event

- A set of all the simple cases of an experiment Called the sample space, s.
- If we let n get infinitely large,

## Statistics – Counting Rules

- There are 216 inclusions in the sample space for throwing 3 dice, the sample space There are 1296 inclusions for throwing 4 dice,
- At some point, we should stop listing and start thinking.
- We need some rules of calculation.
- If the experiment is done in two stages, With m method to complete the first stage and Ways to complete the second stage There are mn ways to accomplish that Should be tried.

## Event Relations

The beauty of using events instead of simple ones We can combine events and use other events. Logical operations and, or not. That is the sum of the two events A and B. A or B or both occur when the experiment takes place Was done.

Thank you for all!

More Statistics Lesson ClickHere!

See you Next Lesson Soon!