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Oak National Academy
12 questions
Capture-recapture is a sampling method which allows you to ___ the size of a population without counting it fully.
Jacob captures 10 birds and marks each one with some non-toxic dye. Jacob recaptures 10 birds, but finds that none of them have a paper band. Select the possible reasons for this.
Which of these assumptions are made when the method of capture-recapture is used?
As part of a capture-recapture sample, 200 fish from a lake are captured and marked with a white dye. During a recapture of 100 fish, 12 were marked with the white dye. Select the correct statement.
Laura captures 9 deer and marks them by attaching a tag to their legs. Three days later, Laura recaptures 40 deer, and 4 of them have a tag attached. Estimate the total number of deer.
Jun captures 21 squirrels and marks them by attaching a tag to their legs. Three days later, Jun recaptures 46 squirrels, and 7 of them have a tag attached. Estimate the total number of squirrels.
__________ can be present in any sample collected from a population and may affect the results of a statistical investigation.
Laura flips a coin three times and it lands heads each time. Laura concludes the coin is biased. Is Laura correct?
Izzy wants to find out what type of music is most popular among pupils at her school. She asks 5 of her friends who their favourite singer is. Which of these comments are correct?
Jacob and Sofia have both investigated what the favourite subject of the year 10 pupils in their school is. ___ sample is more likely to be representative of the population.
Jacob and Sofia have both investigated what the favourite subject of year 10 pupils in their school is. Select the statements that are likely to be true.
Jun wants to find out if the town of Rowanwood needs a new sports centre. Comment on Jun's sampling method.
