2. The Null and Alternative Hypotheses The Null Hypothesis states that there will be no significant relationship between the data sets The Alternative Hypothesis states that there will be a significant relationship between the data sets So if we were to study the relationship between country size and population what would be the null and the alternative hypotheses
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4. The number of buses observed per minute in relation to the distance from the city centre. 2 3 3 2 Σ (O-E) 2 5 1 10 0 (O-E) 2 /E (O-E) Expected frequency (E) No. of buses per min (O) Distance (km)
5. The relationship between the size of pebbles in a river in relation to the distance from its source. 20 3 20 2 Total (O-E) 2 60 1 100 0 (O-E) 2 /E (O-E) Expected frequency (E) Average Diameter of pebbles (mm) (O) Distance from source (km)
6. The number of cars observed in relation to the distance from my house. 44 3 51 2 Total (O-E) 2 53 1 52 0 (O-E) 2 /E (O-E) Expected frequency (E) Number of cars seen (O) Distance from house (km)
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10. Task Work through the exam paper. Answer every question on the exam sheet. Those that you do not complete now are to be done for homework.