1. Descriptive Statistics

Sections

Navigate through the learning materials and practice exercises.

1. 1

   Types Of Data

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   This section explains the two main types of data in statistics: qualitative...

2. 1.1

   Qualitative (Categorical) Data

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   Qualitative data is used to describe categories or qualities in a dataset,...

3. 1.2

   Quantitative (Numerical) Data

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   Quantitative data is numerical data expressed as discrete or continuous...

4. 2

   Data Representation

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   Data representation involves summarizing data using frequency tables and...

5. 2.1

   Frequency Tables

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   This section introduces frequency tables, a key tool in descriptive...

6. 2.2

   Graphical Representations

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   Graphical representations are visual tools that summarize and present data...

7. 3

   Measures Of Central Tendency

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   This section introduces measures of central tendency, including the mean,...

8. 3.1

   Mean (Average)

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   The mean, or average, is a measure of central tendency that summarizes a...

9. 3.2

   Median

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   The median is the middle value in an ordered data set and helps summarize...

10. 3.3

    Mode

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    The mode is the most frequently occurring value in a data set, which can be...

11. 4

    Measures Of Dispersion

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    Measures of dispersion quantify the spread of data points in a dataset,...

12. 4.1

    Range

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    The range is a measure of dispersion that indicates how spread out the...

13. 4.2

    Interquartile Range (Iqr)

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    The Interquartile Range (IQR) measures statistical dispersion by calculating...

14. 4.3

    Standard Deviation (Σ)

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    Standard deviation measures how spread out the values in a data set are in...

15. 5

    Cumulative Frequency And Percentiles

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    This section explains cumulative frequency and percentiles, focusing on...

16. 5.1

    Cumulative Frequency

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    Cumulative frequency refers to a running total of frequencies, which helps...

17. 5.2

    Percentiles

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    Percentiles divide data into 100 equal parts and help interpret individual...

18. 6

    Box Plots (Box-And-Whisker Diagrams)

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    Box plots visually summarize the distribution and characteristics of a data...

19. 7

    Applications And Interpretation

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    This section discusses the practical applications of descriptive statistics...

20. 8

    Summary

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    Descriptive statistics involves summarizing and describing data sets to...