Clustering
Outliers
Positive Association
Negative Association
(Non)Linear Association
Trend Line equations
Functions
100
What is clustering?
Be or come into a cluster or close group; congregate.
100
What is an outlier?
Data point that differs significantly from other observations.
100
What is a positive correlation?
If the trend line is increasing it is positive.
100
What is negative correlation?
If the trend line is decreasing it is negative
100
What does linear association mean?
The straight or nearly straight trend line on a scatterplot.
100
What letter is used to represent the y-intercept?
b
100
What type of line test do you run on a graph to see if it is a function?
Vertical Line Test
200
Is this scatterplot clustered?
No, they aren't in a big clump, they are in a line.
200
Are there any outliers in this scatterplot?
Yes, one point doesn't belong to the group.
200
Is this a positive correlation?
Yes, it is increasing.
200
Is this a negative association?
Yes, the trend line is decreasing.
200
What is a nonlinear correlation?
When the trend line on a scatterplot is not in a line.
200
What letter is used to represent slope/trend line equation?
m
200
True or false: the following is not a function
(2, 5), (5, 2), (3, 4), (-2, 5), (-3, 4), (-5, 4)
False
300
Is this clustering?
Yes, the dots are in a big clump on the scatterplot.
300
Are there any distinct outliers?
No, there are no distinct outliers
300
Is this a positive association?
No, there is no association.
300
Is this negative correlation?
Yes, the tren line is decreasing.
300
Is the trend line linear or nonlinear?
Linear
300
How do we find the slope of a graph?
Rise/run
count how many up/down and how many to the right
300
True or False: If y is a function of x, x can not repeat.
True
400
How many clusters are there in this graph?
There are 3 clusters.
400
How many distinct outliers are there?
There are 2 distinct outliers.
400
What is the difference between a correlation and association?
They mean the same thing, there is no difference!
400
Is this negative correlation?
No, the trend line is increasing.
400
Is the line linear or nonlinear?
It is nonlinear, it curves.
400
What is the equation for this line?
y = x + 60
slope is 10/10 which is equal to 1
400
What type of representation of functions is missing?
Coordinate points, graphs, table, and ___...
Maps
500
What is the difference between these two scatterplots?
One of them is pretty organized and doesn't have outliers, the second one is messy.
500
How many distinct outliers are there?
There are 3.
500
Is this a positive association?
No, it is a negative association.
500
Is this a negative association?
No, there is no association
500
What is another term for the trend line that is used?
SLOPE
500
Using the graph what would the student score be if they studied for 60 minutes?
120
500
Which statement is true about the following coordinate points?
(7,10), (8,10), (12, 10), (-7,10), (-10,10)
A. The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value
B. The mapping does not y as a function of x, because two values of x-values correspond to the same y-value
A