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Vocab
Formulas
Trend Line
Look at the graph
Frequency chart
100
Another word for trend line?
Slope
100
Formula for slope
y2-y1/x2-x1
100
Trend line is going up with data hugging the line close
Strong Positive
100
Find one outlier http://www.fsec.ucf.edu/en/publications/html/fsec-cr-978-97/images/cr1-24.gif
100
What does chart represent http://www.11plusforparents.co.uk/Maths/images/data/table6.gif
How children travel
200
What is a graph in the coordinate plane that shows the relationship between two sets of data
Scatter Plot
200
What is the y intercept formula
y=mx+b
200
Line is head down with data hugging the trend line.
Strong Neagative
200
Where is the cluster? http://www.fsec.ucf.edu/en/publications/html/fsec-cr-978-97/images/cr1-24.gif
200
How many children take a taxi http://www.11plusforparents.co.uk/Maths/images/data/table6.gif
3
300
A set of data close together on a scatter plot
Cluster
300
Formula to find %
small #/Large # times 100
300
Line is going up and data is far away from trend line
Weak Positive
300
Positive or Negative http://www.fsec.ucf.edu/en/publications/html/fsec-cr-978-97/images/cr1-24.gif
Positive
300
How many total children are involved in the study
30
400
Data that is away from a cluster
Outlier
400
Find the slope of (0,2) (3,8)
m=2
400
Line is going down and data is far away from trend line
Weak Negative
400
Weak or strong association http://www.fsec.ucf.edu/en/publications/html/fsec-cr-978-97/images/cr1-24.gif
Strong
400
What is the % of children that take a car
30%
500
colors, gender, and national are examples of
categorical data
500
Find the percentage of 50 and 125
40%
500
Line looks like a camel hump
nonlinear association
500
What does the x axis represent http://www.fsec.ucf.edu/en/publications/html/fsec-cr-978-97/images/cr1-24.gif
Hot water gallons per day
500
What is the % of children that take a train (to the nearesat tenth)?
3.3%