Easy1 markMultiple Choice
AQA GCSE · Question 13 · Data Collection and Sampling Methods
In Vikram's village, there are 600 people. He has sampled 50 of them. 32 of this sample would like a gym to be built. Assume the sample is representative. How many people would you expect, from the whole village, would like a gym to be built?
In Vikram's village, there are 600 people. He has sampled 50 of them. 32 of this sample would like a gym to be built. Assume the sample is representative. How many people would you expect, from the whole village, would like a gym to be built?
Answer options:
A.
32
B.
192
C.
216
D.
384
How to approach this question
1. Find the proportion of people in the sample who want a gym. This is (number who want a gym) / (sample size) = 32 / 50.
2. To estimate the number for the whole village, multiply this proportion by the total population of the village.
3. Calculation: (32 / 50) * 600.
Full Answer
D.384✓ Correct
384
We assume that the proportion of people wanting a gym in the sample is the same as the proportion in the whole village.
The proportion in the sample is 32 out of 50, which can be written as the fraction 32/50.
To estimate the number for the whole village (population 600), we multiply this fraction by the total population:
Estimated number = (32 / 50) * 600
We can simplify this calculation:
= 32 * (600 / 50)
= 32 * 12
= 384
So, we would expect 384 people in the village to want a gym.
Common mistakes
✗ Multiplying incorrectly.\n✗ Setting up the proportion incorrectly, for example (50/32) * 600.
Practice the full AQA GCSE Statistics Foundation Tier Paper 2
45 questions · hints · full answers · grading
More questions from this exam
Q01A set of data is ordered from smallest to largest. What is the name given to the measure that is ...EasyQ02Look at these sets of data. Which data set has a different range to the others?
A: 2, 4, 5, 5, 7,...EasyQ03The probability that a biased coin lands on heads is 2/5. What is the probability that this coin ...EasyQ04Which of these diagrams could be suitable for displaying raw discrete data?EasyQ05.1The table shows the annual sales value (£ million) in the UK of different ways to buy music. Writ...Easy
Expert