Mathematics Applications · Unit 4 · Topic 4.1
Time series analysis
5 free questions, 5 calculator-free and 0 calculator-assumed, with worked solutions written like marking keys.
1
Calculator-freefoundation
Determine the three-point moving average of the values 12, 15 and 18. 2 marks[2]
2
Calculator-freestandard
Determine the four-point moving average of the values 20, 24, 28 and 32. 3 marks[3]
3
Calculator-freefoundation
A least-squares trend line for a time series is y=5t+100. Predict the value at t=12. 2 marks[2]
4
Calculator-freefoundation
Determine the three-point moving average of 22, 26 and 30. 2 marks[2]
5
Calculator-freefoundation
A trend line is y=3t+40. Predict the value at t=15. 2 marks[2]