Data
Data gathered on the number of home runs in a baseball season would be classified as:
What is discrete numerical?
Only matrices of the __________ can be added and subtracted.
Same order (2x2 + 2x2 = defined)
Euler’s formula
v − e + f = 2
GST is added to the cost of an item or service purchased and is currently _____ % in Australia
10%
The variable that explains the change in the response variable (RV) - is placed on the x-axis
What is explanatory variable (EV)?
These features should be included to describe a univariate data
What is modality, outlier, shape?
____________ matrices/tables always have ‘from’ in columns and ‘to’ in rows
A graph that can be drawn with no intersecting edges
What is a planar graph?
formula to calculate simple interest
I = (Prn)/100
Least squares line of best fit equation
y = a + bx, where y is the response variable, x is the explanatory variable, b is the gradient or slope of the line, and a is the y-intercept.
The symbol 𝜇 (pronounced mu) can also represent the
What is the mean?
_____________ matrix represents the number of connections directly between objects.
Adjacency
A circuit in which every edge is used once
Euler circuit
The rule for calculating percentage change
Percentage change = (V2 - V1)/V1 x100
Describing the association of a scatterplot - 4 descriptors
Direction (pos/neg), strength (r value - strong/mod/weak), form (linear/non-linear), outliers
Q3-Q1
For matrices to be able to be multiplied together (have a product)
the number of columns in the first matrix must equal the number of rows in the second matrix.
Graphs that have the same number of vertices and edges, with corresponding vertices having identical degrees and connections.
What is isomorphic?
A term used to describe a general increase in prices over time that effectively decreases the purchasing power of a currency
What is Inflation?
A Pearson's product-moment correlation coefficient 'r' of -0.55, strength and direction.
Moderate negative linear association
Distributions with higher frequencies on the left side of the graph are:
Positively skewed
To calculate the value of a state given the initial state, use the formula
Sn=TnS0
An Euler trail exists
If exactly two vertices of a connected graph are odd
While camping, the Blake family use powdered milk. They mix the powder with water in the ratio of 1:24.
How much of each ingredient they need to make up 600mL
24g of powder and 576mL of water
Tells us the percentage of variation in the response variable that is explained by variation in the explanatory variable.
The coefficient of determination - 'r2'