WorksheetsEnvironmental Management
Total questions: 18
Worksheet time: 9mins
The (a) 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 (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
What is an hypothesis?
A question in which you base your investigation on
It is a statement on the topic that you are investigating
It is a representation of reality
In the random sampling method, sample points are selected using random numbers to avoid ____________
Wrong samples
Errors
Problems
Bias
In the (a) sampling method, sample points are selected using a regular pattern or order
A good hypothesis should
Be a prediction with a cause an effect
Be short in length
Be a question
State the independent and dependent variable being tested
Be a statement
What is the purpose of calibrating our equipment?
To adjust the equipment to ensure its inaccuracy
To adjust the equipment to ensure its inaccuracy
The ____________ is the value with the highest frequency in graphic organizer
mean
median
mode
It is useful to record data in a ____________ format
Text
Table
Graphic
Video
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