In an natural observational study investigators
observe subjects and measure variables
of interest without assigning treatments to
the subjects
In an experimental study (inferential stat), data are used to make generalizations about a population based on a sample.
Hence the 1st question is an experimental.
Answer:
The answer is c mountains a plains and d plateaus
Explanation:
I did this
Answer:
- Write notes
- Memorise notes
- Do practice questions
- Review notes often
- Use mindmaps
- Start studying 2-3 weeks before exam
- Keep notes short and simple
- Use highlighters in notes to make important words stand out
- Do practice exam papers under exam conditions and have them marked by a teacher
- Check past tests to see what you need to improve on
- Check your syllabus so you know what to study for
B. Twisting is a non locomotor skill.
.concentration range 40,000 ppm