Averages: Mean from a Frequency Table Silent Teacher Intelligent Practice Narration Your Turn Number of pets Frequency 10 1 5 2 3 Example For more videos visit mrbartonmaths.com/videos

Worked Example Your Turn Calculate the mean number of siblings Calculate the mean number of siblings Number of siblings Frequency 2 1 3 4 Number of siblings Frequency 4 1 6 2 3 @mathsmrgordon

2 1 5 3 1 2 20 3 1 2 3 Number of pets Frequency Number of pets 2 1 3 Number of pets Frequency 5 1 2 3 Number of pets Frequency 20 1 2 3

1 20 2 3 1 10 2 3 1 2 10 3 Number of pets Frequency Number of pets 1 20 2 3 Number of pets Frequency 1 10 2 3 Number of pets Frequency 1 2 10 3

1 5 2 3 10 10 1 5 2 3 10 1 5 2 3 Number of pets Frequency 1 5 2 3 10 Number of pets Frequency 10 1 5 2 3 Number of pets Frequency 10 1 5 2 3

2 1 Mean = 1.5 5 3 1 2 20 3 1 Mean = 1.5 2 3 Mean = 0 Number of pets Frequency 2 1 3 Mean = 1.5 Number of pets Frequency 5 1 2 3 Mean = 1.5 Number of pets Frequency 20 1 2 3 Mean = 0

Number of pets Frequency 1 20 2 3 Mean = 1 Number of pets Frequency 1 10 2 3 Mean = 1.5 Number of pets Frequency 1 2 10 3 Mean = 2.5

Number of pets Frequency 1 5 2 3 10 Mean = 2.25 Number of pets Frequency 10 1 5 2 3 Mean = 0.75 Number of pets Frequency 10 1 5 2 3 Mean = 0.85