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  2. Grade 9
  3. Statistics and Probability
  4. Statistics
  5. Mean, Median, and Mode
  6. Mean
  7. Mean for Ungrouped Frequency Distributions
  8. Direct Method for Finding Mean
Grade 9
1. Number System
2. Polynomials
3. Geometry
4. Coordinate Geometry
5. Linear Equations in Two Variables
6. Mensuration
7. Statistics and Probability
7.1. Statistics
7.1.1. Frequency Distribution of Grouped and Ungrouped Data
7.1.2. Cumulative Frequency Table of an Ungrouped Data
7.1.3. Bar Graph
7.1.4. Histogram
7.1.5. Frequency Polygon
7.1.6. Mean, Median, and Mode
7.1.6.1. Mean
7.1.6.1.1. Problems on Mean
7.1.6.1.2. Mean for Ungrouped Frequency Distributions
7.1.6.2. Median for Ungrouped Data
7.1.6.3. Mode for Ungrouped Data
7.2. Probability

Grade 9 Sri Lanka School Math Direct Method for Finding Mean

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