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AQA Higher Tier Exam-style past paper with complete mark schemes, hints, AI assistance and detailed explanations. This paper covers topics including sampling, data representation, probability, and correlation.
A fair coin is tossed four times. Circle the probability of getting 'tails' on all 4 tosses.
Olivia wants to obtain a systematic sample of size 40 from a population of 2000 competitors in a race. She numbers the competitors from 1 to 2000 and uses, as a starting point, competitor number 11. Circle the correct competitor number of the next person in her sample.
Which statistical term means 'the extent to which something gives results that are consistent'?
BMI stands for Body Mass Index and is based on your height and mass. Louise and William have this hypothesis, "Our classmates have a lower BMI than other Year 11 students in the country." They collect height and mass data from some of their classmates, shown in the table. Give one criticism of the collected data.
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