L1 - Essential Maths Flashcards
1
Q
What is the SI base unit for mass?
A
Kilograms(kg)
2
Q
What is the SI base unit for force?
A
Newtons(N)
3
Q
What is the SI base unit for energy?
A
Joules(J)
4
Q
What is the SI base unit for temperature?
A
Kelvin(K)
5
Q
What is the SI base unit for stress?
A
Pascals(Pa)
6
Q
Define precision
A
The degree to which measurements show similar results under stable measurement conditions
7
Q
Define accuracy
A
The degree to which the measured result matches the actual value
8
Q
If a data set shows a high degree of precision, but low accuracy, what is the core problem?
A
Systematic Error
9
Q
What does descriptive statistics do?
A
Organise and summarises data - goal to minimise information loss
10
Q
What does inferential statistics do?
A
Draws inferences about populations from samples
