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.

Calculator-freefoundation

Determine the three-point moving average of the values 1212, 1515 and 1818.

2 marks

Calculator-freestandard

Determine the four-point moving average of the values 2020, 2424, 2828 and 3232.

3 marks

Calculator-freefoundation

A least-squares trend line for a time series is y=5t+100y = 5t + 100. Predict the value at t=12t = 12.

2 marks

Calculator-freefoundation

Determine the three-point moving average of 2222, 2626 and 3030.

2 marks

Calculator-freefoundation

A trend line is y=3t+40y = 3t + 40. Predict the value at t=15t = 15.

2 marks