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  2. Grade 9
  3. Statistics and Probability
  4. Statistics
  5. Mean, Median, and Mode
  6. Mean
  7. Word Problems on 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 an Ungrouped Data
7.1.2. Cumulative Frequency Table of an Ungrouped Data
7.1.3. Bar Graph
7.1.4. Histogram{There are minor defects in the questions which need to be rectified}
7.1.5. Frequency Polygons
7.1.6. Histograms and Frequency Polygons on a Single Graph
7.1.7. Mean, Median, and Mode
7.1.7.1. Mean
7.1.7.1.1. Arithmetic Mean of Numerical Data
7.1.7.1.2. Word Problems on Mean
7.1.7.1.3. Mean for Ungrouped Frequency Distributions
7.1.7.2. Median
7.1.7.3. Mode
7.2. Probability

Grade 9 Sri Lanka School Math Word Problems on Mean

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