Luka wants to carry out a survey of students at his school. He obtains a list of all 280 students. Explain how he can use this list to select a systematic sample of 40 students. (2) Luka is trying to make his own random number table. He generates 400 digits to put in his table. Figure 1 shows the frequency of each digit in his table. A test is carried out at the $$\(10 \%\)$$ level of significance to see if the digits Luka generates follow a uniform distribution. For this test $$\(\sum \frac{(O-E)^{2}}{E}=5.9\)$$

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