Zadanie 1a
How many sampled workers belong to department D?
Sampling, data quality and outliers
Distinguish populations and samples, assess sampling choices and bias, and identify outliers with the stated quartile rule.
Tę umiejętność sprawdza 5 zadań wzorowanych na arkuszach IB z lat 2023–2026.
Zadania sprawdzające tę umiejętność: 5 Otwórz w wyszukiwarce z filtrami
Zadanie 1d
An outlier is below Q₁−1.5IQR or above Q₃+1.5IQR. Find the smallest commuting time permitted by this rule without being a lower outlier.
- Materiał graficzny
Zadanie 4c
To gather feedback, the coordinator interviews the first 40 members who enter the workshop on Monday. Identify the sampling method.
Zadanie 7c
(i) Give one disadvantage of inspecting only the first 10% of arrivals. (ii) Describe systematic sampling of 10% of arrivals. (iii) Name a method that sets sample numbers to match the known proportions of refrigerated and ambient specimens.
Zadanie 7c
(i) Give one disadvantage of inspecting only the first 10% of arrivals. (ii) Describe systematic sampling of 10% of arrivals. (iii) Name a method that sets sample numbers to match the known proportions of refrigerated and ambient specimens.