Test: Collecting Data - Year 7 MCQ

A questionnaire is a set of questions made specifically to gather data.

Choosing the size of your sample is an important part of the survey preparation.

Five bar gates make the tally marks much easier to count.

Frequency refers to the count of occurrences for each category in a tally chart, making it the standard term for this column.

Surveys and questionnaires are tools used to collect data by asking people about their opinions, behaviors, or preferences. While interviews (option D) can also gather such data, surveys are typically more structured and scalable.

Qualitative data is descriptive and cannot be expressed numerically, such as colors or opinions.

Experiments involve controlling variables to test specific hypotheses, such as testing plant growth under different light conditions.

Says “50% of pupils are girls” → implies total = 1000 pupils (unstated).

Sample = 10% of 1000 = 100.

Girls = 50% of 100 = 50.

Ethical considerations in data collection include respecting privacy, avoiding bias, and ensuring accuracy. Convenience is not an ethical consideration.

Interviews are used to collect detailed and personal information through direct conversations with individuals.