1.3 KiB
1.3 KiB
21 Setembro 2023 - #DAA
Types of Data
-Numerical - Discrete Data ({1,2,3,...}) - Continuous Data ()
- Categorical (binary, languages, ...)
- Ordinal (ratings of 1 to 5)
*not-scaled **scaled
[!example]- Qual o tipo de dado que representa a quantidade de gasóleo? Numérico: continuous data
[!example]- Qual o tipo de dado que representa a nacionalidade? Categórico
[!example]- Qual o tipo de dado que representa a idade? Numérico: discreto
Mean, Median & Mode
- https://en.wikipedia.org/wiki/Average
- https://en.wikipedia.org/wiki/Median
- https://en.wikipedia.org/wiki/Mode_(statistics)
Standard Deviation & Variance
Probability Density functions
Percentiles
There are 3 important percentiles:
- 50% - median
- 25% - 1st percentile
- 75% - 3rd percentile
[!note]+ These 3 percentiles allow the creation of box plot graphs. These specific graphs allow the discovery and presentation of outliers.
Covariance & Correlation
[!hint]+ Covariance measures the direction of a relationship between two variables, while correlation measures the strength of that relationship.