5. Measures of Central Tendency
The chapter focuses on measures of central tendency, which summarize a set of data into a single representative value. It covers the definitions and calculations for the arithmetic mean, median, and mode, along with different methods for calculating these measures. Through examples and exercises, the chapter emphasizes the importance of selecting the most suitable average based on the nature of the data.
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Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Measures of central tendency summarize data with a single representative value.
- Arithmetic mean is defined as the sum of all observations divided by the number of observations.
- Median is the positional value that divides the distribution into equal parts, while the mode is the most frequently occurring value.
Key Concepts
- -- Arithmetic Mean
- An average calculated by dividing the sum of all observations by the number of observations.
- -- Median
- The middle value that divides a dataset into two equal halves.
- -- Mode
- The value that appears most frequently in a dataset.
- -- Quartiles
- Values that divide the data into four equal parts.
- -- Percentiles
- Values that divide the data into hundred equal parts.
Additional Learning Materials
Supplementary resources to enhance your learning experience.