igureMaths
Log in
Start free
←
Sampling
Get dealt questions instead
→
Browse Sampling
22 questions at your level
Difficulty
All
Level 1
Level 2
Level 3
Level 4
Level 5
Populations & samples
11 questions
Lesson
Not started
Mark as done
A head teacher wants to know how the
900
900
900
students at her school travel to school. She asks
50
50
50
of them. What name is given to (a) the
900
900
900
students,
(b)
the
50
50
50
students?
●
●●●●
Level 1
2 marks
Start
→
Mark as done
Give one reason why someone might take a sample instead of asking the whole population.
●
●●●●
Level 1
1 mark
Start
→
Bias & sampling methods
11 questions
Lesson
Not started
Mark as done
Tom wants to find out how often people in his town go swimming. He asks people leaving the swimming pool. Explain why this sample is biased.
●
●●●●
Level 1
1 mark
Start
→
Mark as done
A council wants to find out what people in the town think about a new bus route.
The council asks
30
30
30
people waiting at the bus station one Monday morning.
(a)
Give one reason why this sample may be biased. (1 mark)
(b)
Suggest one way the council could improve the sample. (1 mark)
●
●●●●
Level 1
2 marks
Start
→