Foundation
- 1Cumulative Frequency
On a cumulative frequency graph, what do you plot each cumulative frequency against?
- 2Box Plots
A box plot shows minimum 4 and maximum 36, with median 20. State the range of the data.
- 3Scatter Graphs and Line of Best Fit
Explain why estimating a y-value for x = 50 would be unreliable if all the plotted data only covers x-values from 0 to 20.
- 4Time Series
Explain why using a time series trend to estimate a value many years into the future is less reliable than estimating one year ahead.
- 5Population Pyramids
Country A's pyramid has a wide base and narrow top; Country B's has a narrow base and a wide middle/top. Which country most likely has the higher birth rate?
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