Environmental Management

The _____________________ variable is deliberately changed in an experiment

The following image shows a

• Histogram

• Scatter graph

• Bar graph

• Line graph

Which are the two types of data?

• Qualitative data

• Independent data

• Quantitative data

• Dependent data

A good questionnaire should:

• be carefully worded to avoid ambiguity

• be quick to complete and with a limited number of questions

• have open questions at the beginning

• be slow to complete and with an unlimited number of questions

• have closed questions at the beginning

Which of the following graphs is a scatter graph?

• 
• 
• 
• 

A _____________ survey is the trial run of a survey, which aims to discover any problems.

In ________________ sampling method, a population is divided up into groups (ages, gender, etc.) since it ensures that each group is asked in the correct proportion

• random

• stratified

• systematic

How can you take samples?

• Area a quadrat sampling

• Zig-zag sampling

• Line sampling

• Point sampling

• Rectangle sampling

The three kinds of average in a graphic organiser are

• Mean

• Range

• Trend

• Mode

• Median

When planning an investigation, what is the purpose of an aim?

• It is the variable that is measured in an experiment

• It identifies the purpose of your investigation

• It is a statement on the topic you are investigating