REVISION NOTES
IGCSE Edexcel Mathematics A
a
6.2 Statistical Measures
6.2.1 Understand the concept of average
![edexcel_igcse_mathematics a_topic 39_statistical measures_001_Mean, Median, Mode and Range for Discrete Data](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-39_statistical-measures_001_Mean-Median-Mode-and-Range-for-Discrete-Data.png)
6.2.2 Calculate the mean, median, mode and range for a discrete data set
![edexcel_igcse_mathematics a_topic 39_statistical measures_002_Mean for Discrete Data using Frequency Table](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-39_statistical-measures_002_Mean-for-Discrete-Data-using-Frequency-Table.png)
6.2.3 Calculate an estimate for the mean for grouped data
6.2.4 Identify the modal class for grouped data
![edexcel_igcse_mathematics a_topic 39_statistical measures_003_Mean for Grouped Data using Frequency Table](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-39_statistical-measures_003_Mean-for-Grouped-Data-using-Frequency-Table.png)
6.2.5 Estimate the median from a cumulative frequency diagram (Higher Tier Only)
![edexcel_igcse_mathematics a_topic 39_statistical measures_005_Median for Grouped Data](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-39_statistical-measures_005_Median-for-Grouped-Data.png)
6.2.6 Understand the concept of a measure of spread (Higher Tier Only)
![edexcel_igcse_mathematics a_topic 39_statistical measures_006_Range](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-39_statistical-measures_006_Range.png)
6.2.7 Find the interquartile range from a discrete data set (Higher Tier Only)
![edexcel_igcse_mathematics a_topic 39_statistical measures_007_Interquartile Range](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-39_statistical-measures_007_Interquartile-Range.png)
6.2.8 Estimate the interquartile range from a cumulative frequency diagram (Higher Tier Only)
![edexcel_igcse_mathematics a_topic 39_statistical measures_008_Interquartile Range using Cumulative Frequency](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-39_statistical-measures_008_Interquartile-Range-using-Cumulative-Frequency.png)