2. Data Processing
Measures of central tendency provide a way to find a single representative value that summarizes a set of observations. The three primary measures investigated are mean, median, and mode, each serving different types of data while compensating for variations and relationships within the data. Comprehension of how to calculate and when to use each measure is essential for effective statistical analysis.
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What we have learnt
- Measures of central tendency include mean, median, and mode.
- Mean is calculated as the average of all values.
- Median represents the middle value when data is ordered.
- Mode indicates the most frequently occurring value in a dataset.
Key Concepts
- -- Mean
- The arithmetic average of a set of values, calculated by summing all observations and dividing by the total number.
- -- Median
- The middle value in a sorted dataset, dividing it into two equal halves.
- -- Mode
- The value that appears most frequently in a data set.
- -- Grouped Data
- Data that is organized into classes or groups, often used for calculating statistics like mean and median.
- -- Ungrouped Data
- Raw data without any grouping, used for direct calculation of statistics.
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