To find the deviation from the mean for each data item, follow these steps:
- Calculate the Mean: Add all the data items together and divide by the total number of items. This gives you the average value, known as the mean.
- Find the Deviation: For each data item, subtract the mean from the item. This is expressed as:
Deviation = Data Item - Mean- Interpreting the Deviation: A positive deviation indicates that the data item is above the mean, while a negative deviation shows it is below the mean.
By following these steps, you can easily find and interpret the deviation from the mean for each item in your dataset.