AQA Psychology - Research Methods - Mathematical Content
A percentage is a way of expressing a number as a fraction of 100. It means “per hundred” — so to calculate a percentage, you divide the value by 100.
What does percentage mean?
Divided by 100
Key Terms
What does percentage mean?
Divided by 100
How to convert a percentage to a decimal?
Remove %
- Move decimal two places to the left
What is a decimal place?
Number of digits to the right the decimal point
How can a ratio be expressed as?
-Part-to-part ratio
or
-Part-to-whole ratio
What should a ratio be?
The lowest common denominator
What are significant figures?
When many numbers come after a decimal point, they may be rounded off to 1,2,3 or 4 significant figure
Related Flashcard Decks
Study Tips
- Press F to enter focus mode for distraction-free studying
- Review cards regularly to improve retention
- Try to recall the answer before flipping the card
- Share this deck with friends to study together
Term | Definition |
---|---|
What does percentage mean? | Divided by 100 |
How to convert a percentage to a decimal? |
- Move decimal two places to the left |
What is a decimal place? | Number of digits to the right the decimal point |
How can a ratio be expressed as? | -Part-to-part ratio |
What should a ratio be? | The lowest common denominator |
What are significant figures? | When many numbers come after a decimal point, they may be rounded off to 1,2,3 or 4 significant figure |
What is the job of a zero in significant figures? | To act as a place holder |
What is 0.0024563562 to 1 significant figure? | 0.002 |
What is 0.0024563562 to 4 significant figures? | 0.002456 |
What is 253493.35 to 2 significant figures? | 250000 |
What is standard form? | A way of expressing very large or very small numbers |
What is the standard form of 320000? | 3.2 x 10^5 |
What is the standard form of 0.000032? | 3.2 x 10^-5 |
What does = mean? | Equality |
What does > mean? | Greater than |
What does < mean? | Less than |
What does»_space; mean? | Much greater than |
What does «_space;mean? | Much less than |