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1. Statistics · Sampling · Question 1 · 1 mark

   A teacher wants a sample of 30 students from a school of 600. Which method gives every student an equal chance of being chosen?

   Choose the first 30 students on the registerGive every student a number and use a random number generator to pick 30Ask 30 students queuing at the canteenAsk for 30 volunteers
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2. Statistics · Averages · Question 2 · 1 mark

   Five students scored 4, 7, 7, 9 and 13 in a quiz. Work out the mean score.
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3. Statistics · Scatter graphs · Question 3 · 1 mark

   
   The scatter graph shows hours of practice and score for six students. What type of correlation is shown?

   negative correlationno correlationproof of causationpositive correlation
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4. Probability · Question 4 · 1 mark

   A bag has 3 red counters and 5 blue counters. One counter is taken at random. Write the probability that it is red, as a fraction.
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5. Statistics · Sampling · Question 5 · 2 marks

   Describe how to take a systematic sample of 30 people from a list of 300.
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0 of 5 answered.