Analysis Flashcards
(9 cards)
1
Q
%change
A
Qunatifies change
Final-orig÷orig x 100
2
Q
Sd
A
How values are spread abt the mean
Small= rep results close= similar and precise results
3
Q
T test
A
2 data sets for comparison
Value greater than critical v= sig tells sig diff or if due to Chance
4
Q
Chi
A
Categorical data and if obs is statistically diff from expected
Greater than critical= sig
5
Q
Significant fig an sf
A
Lowest or 3sf
Dp moved toward left is positive
6
Q
Graphs and charts
A
Qualitative or discrete= bar/pie
Continuous = line graphs,histo
One v againsts other= scattergraph
7
Q
Logarithims
A
Each value is 10x larger eg 1=10
8
Q
Rate
A
Smtgg changing over time
Linear= change in y÷x
Y=mx + c
9
Q
Tangent
A
Rule at rate and Extend line
Change in y÷x
