8th Grade · Statistics & Probability
Prediction
8.SP.A.3
Definition
An estimate of an output value made by substituting a new input into a data model's equation. Predictions are most reliable within the range of the observed data.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- For 6 hours: y = 8(6)+50 = 98 points predicted.
- Predicting far outside the data range is risky — the trend may not continue.
Key rule
Plug the new input into the model's equation to predict the output.
Memory hook
Use the model to estimate a new value.