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Grade D - Questionnaires. Mandip is doing a survey on “ Healthy Eating ” in the town where he lives. (a) Give one reason why he should not do the survey outside the sports centre. (1 mark)

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grade d questionnaires
Grade D - Questionnaires

Mandip is doing a survey on “Healthy Eating” in the town where he lives.

(a) Give one reason why he should not do the survey outside the sports centre. (1 mark)

(b) One of the questions he asks is “Do you eat fruit or sweets?”

Explain why this is a poorly worded question. (1 mark)

(c) There are 2000 people in the town where Mandip lives. He interviews 15 people for his survey.

Explain why his survey may not be representative of the people in the town. (1 mark)

grade d questionnaires answers
Grade D – Questionnaires - answers

Mandip is doing a survey on “Healthy Eating” in the town where he lives.

(a) Give one reason why he should not do the survey outside the sports centre. Lots of healthy eaters at sports centre -> biased (1 mark)

(b) One of the questions he asks is “Do you eat fruit or sweets?”

Explain why this is a poorly worded question.

Asking 2 questions. Should only ever ask one.(1 mark)

(c) There are 2000 people in the town where Mandip lives. He interviews 15 people for his survey.

Explain why his survey may not be representative of the people in the town. Not enough people in survey -> biased results (1 mark)