This task is about sampling.
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Kahu, Ravi, and Anne each did a survey to find out the fraction of people who are born in summer. |
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| a) |
What fraction of people were born in summer in each of these surveys? |
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i)
ii)
iii)
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Kahu asked 10 people, and found that 3 were born in summer. __________
Ravi asked 100 people, and found that 29 were born in summer. __________
Anne asked 1000 people, and found that 263 were born in summer. __________
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| b) |
i)
ii)
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Which person's survey should give the best estimate of the fraction of people that are born in summer?
____________________
Why is this estimate the best? |
| c) | What fraction of all the people asked were born in summer? __________ |