0.7 Processing data Flashcards
1
Q
What is meant by data processing?
A
Analysing data
2
Q
What is the mean?
A
Average (add up values and divide by the number of values)
3
Q
What is the range?
A
How spread out the data are = largest minus smallest value
4
Q
What is the median?
A
The middle value
5
Q
What is the mode?
A
The most common value
6
Q
How do you show uncertainty in results
A
Use the +/- symbol (e.g. 4 +/- 0.5)
7
Q
What is meant by the first significant figure (s.f.)?
A
The first digit in a number that is not a zero
