Additional Notes Flashcards
Exam practice
1
Q
Calculating population density:
A
P
D |A
P=population.
D=density.
A=area.
Cover what you are working out. Then calculate.
Multiply if they are next to each other. Divide if they are above.
2
Q
Percentage change:
A
(original value-new value)
÷original value
× 100
Do in the exact order to get the right answer.
3
Q
Range:
A
Difference between.
4
Q
Mode:
A
Value with the highest frequency.
5
Q
Median:
A
Middle value after data has been sorted into ascending order.
