... more detailed investigation could be done by adding other factors, such as distance from school or method or transport to school (allowing more or less time to watch TV). My hypothesis is that males will watch TV more, and the higher the years will watch more TV. The two categories I have chosen (gender and year group) will be sufficient to show a correlation however, since it will show any trends between gender and/or year group towards their TV habits. The gender identifies trends between boys and girls on how much they like to watch TV as a gender, and the year group shows how peoples TV habits change as they get older. There should be no bias in this since there is 5% of the population and there is an equal amount of each gender, and only a small difference in amounts of people in the year group. ...

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