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  2. Year 9
  3. Statistics and Probability
  4. Statistics
  5. Mean, Median, and Mode
  6. Mean
  7. Mean for Ungrouped Frequency Distributions
  8. Step-Deviation Method for Finding Mean
Year 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
7.1.7.1.3.1. Direct Method for Finding Mean
7.1.7.1.3.2. Assumed-Mean Method
7.1.7.1.3.3. Step-Deviation Method for Finding Mean
7.1.7.2. Median
7.1.7.3. Mode
7.2. Probability

Year 9 New Zealand School Math Step-Deviation Method for Finding Mean

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