estatística

Data reduction: the different types of sampling

Data reduction: the different types of sampling

Leon

We went through the data collection part of the course, now let's see how to reduce the data!

estatística dados tipos

Data reduction: identifying outliers

Data reduction: identifying outliers

Leon

Do you have a set of data and find some points within it strange? Do you believe that those points ...

estatística outlier dado redução

Reduced normal distribution: how to transform

Reduced normal distribution: how to transform

Leon

Let's now teach how statisticians memorized an entire distribution to facilitate probability calcula...

estatística normal

Normal distribution and its history

Normal distribution and its history

Leon

Lots of problems calculating probability? Your problems are over, the Central Limit Theorem has com...

estatística matemática distribuição normal

Multiplicative principle and simple combination

Multiplicative principle and simple combination

Leon

Some probabilities can be difficult to calculate, but for this we have some principles that will hel...

estatística probabilidade matemática

Statistics and probability: its history and why is it so difficult?

Statistics and probability: its history and why is it so difficult?

Leon

In previous courses, we saw about data collection and reduction. In this course we will now embark ...

probabilidade estatística história

Measures of association or relationship: Linear Regression

Measures of association or relationship: Linear Regression

Leon

Today we will describe in the form of a linear function the connection between two variables

estatística regressão duas variáveis

Measures of association or relationship: correlation

Measures of association or relationship: correlation

Leon

We continue studying the relationship between two variables, now looking at the correlation

estatística relação

Measures of association or relationship: covariance

Measures of association or relationship: covariance

Leon

Let's look at the first measure we collect when we study the relationship between two variables: the...

estatística relação

Two-Dimensional Analysis: Cause or Correlation?

Two-Dimensional Analysis: Cause or Correlation?

Leon

In module 1 we focused on analyzing just 1 variable, but what should we do when there are two variab...

estatística comparação

Asymmetry and kurtosis measurements

Asymmetry and kurtosis measurements

Leon

Once we know where our data is positioned and how dispersed, we ask ourselves more complicated quest...

estatística curtose

Dispersion measures: variance and standard deviation

Dispersion measures: variance and standard deviation

Leon

Today we will talk about one of the most important measures: dispersion measures. They helped us un...

estatística desvio dispersão

Position measurements: arithmetic mean, mode and median

Position measurements: arithmetic mean, mode and median

Leon

After tabulating our data, we can collect something else: position measurements such as mean, median...

estatística moda

Frequency distribution: collecting data in the field

Frequency distribution: collecting data in the field

Leon

The first step of statistics is collecting data, okay. And how will we collect this data?

estatística coleta dados

Difference between data and variable and their types

Difference between data and variable and their types

Leon

The variation field of each type of data to be researched is called a variable. What types of varia...

estatística dados

Data, information and knowledge: starting in Statistics

Data, information and knowledge: starting in Statistics

Leon

Let's start today by talking about data, the basics of Statistics. After all, what is statistics an...

dados estatística

Statistical process control (CEP) for production quality

Statistical process control (CEP) for production quality

Leon

CEP was created to monitor processes to the point of notifying us when, for some reason, something g...

qualidade estatística