Zadanie 5a
Use the appropriate regression equation to estimate height for a tree whose crown is 6 m wide.
Predicting x from y
Use the regression of x on y for prediction and distinguish it from reversing the regression of y on x.
Tę umiejętność sprawdza 6 zadań wzorowanych na arkuszach IB z lat 2022–2025.
Zadania sprawdzające tę umiejętność: 6 Otwórz w wyszukiwarce z filtrami
Zadanie 5b
Find the mean height and the mean crown width.
Zadanie 6c
For a missing A reading with y=130, the technician rearranges 130=1.069x+2.184 and rounds to 120. (i) Explain the problem with this method. (ii) Use an appropriate method to show that the estimate is 119 to the nearest integer.
Zadanie 4b
Find a regression equation suitable for predicting bookings x from visitor count y.
Zadanie 4c
Hence predict bookings for a nine-hour opening period.
Zadanie 3b
(i) Predict c when a=44. (ii) Find the mean of the a readings.
- Materiał graficzny