Understanding Averages and Medians in Frequency Tables
Explore how to calculate the mean number of siblings and the median number of pets from frequency tables. Learn through worked examples and practice exercises. The content covers various scenarios with clear explanations and visual aids, helping you grasp these essential statistical concepts effectively.
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Presentation Transcript
Averages: Averages: Median from a Frequency Table Median from a Frequency Table Silent Teacher Intelligent Practice Your Turn Narration Number of pets Frequency 0 10 1 5 2 5 3 0 Practice
Worked Example Your Turn Calculate the mean number of siblings Calculate the mean number of siblings Number of siblings Frequency Number of siblings Frequency 0 2 0 4 1 4 1 7 2 1 2 2 3 2 3 4 4 2 4 4
Number of pets Frequency Number of pets Frequency 1. 4. 0 0 0 2 1 20 1 2 2 0 2 2 3 0 3 2 4 0 4 5 2. Number of pets Frequency Number of pets Frequency 5. 0 5 0 0 1 5 1 11 2 5 2 10 3 5 3 0 4 5 3. Number of pets Frequency Number of pets Frequency 6. 0 20 0 0 1 0 1 0 2 0 2 10 3 0 3 11
Number of pets Frequency 7. 0 0 1 5 2 5 3 10 4 10 8. Number of pets Frequency 1 10 2 6 3 6 4 0 Number of pets Frequency 9. 1 10 2 5 3 3 4 3
Number of pets Frequency Number of pets Frequency 1. 4. 0 0 0 2 1 20 1 2 Median = 1 Median = 3 2 0 2 2 3 0 3 2 4 0 4 5 2. Number of pets Frequency Number of pets Frequency 5. 0 5 0 0 1 5 1 11 Median = 1 Median = 2 2 5 2 10 3 5 3 0 4 5 3. Number of pets Frequency Number of pets Frequency 6. 0 20 0 0 1 0 1 0 Median = 0 Median = 3 2 0 2 10 3 0 3 11
Number of pets Frequency 7. 0 0 1 5 Median = 3 2 5 3 10 4 10 8. Number of pets Frequency 1 10 2 6 Median = 2 3 6 4 0 Number of pets Frequency 9. 1 10 2 5 Median = 2 3 3 4 3
