Question: 11. When graphing one-variable data, is the frequency the dependent or the independent variable? (1 mark) 12. A survey asks the question, What is your

11. When graphing one-variable data, is the frequency the dependent or the independent variable? (1 mark) 12. A survey asks the question, "What is your favourite colour: red or black?" State whether this is a valid question for determining favourite colours. Which three words should be deleted to make the question better? (2 marks) 13. State whether the following results are both reliable and valid. Explain. (6 marks) a) A national political survey asks a group of high school students what party they favour in order to determine which party will win the next election. b) All the traffic lights in a town are timed and it is found that they consistently stay yellow for four seconds. c) The radio station Fan 590 has a phone-in survey to determine if the coach of the Toronto Maple Leafs should be fired and 93% of the people who call in are in favour

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