Scatter Plots & Association
Trend Lines
Two-Way Tables
Relative Frequency
Misc.
100
State the type of association, whether it is strong or weak, and if it is linear or non-linear.
Positive, Strong, & Non-Linear
100
Is this a good trend line for the data in this scatter plot? State yes or no and why.
No, the trend line is below most of the data points.
100
How many total teachers were surveyed?
77 teachers
100
What is the relative frequency of the students surveyed that want final exams?
6%
100
A point that does not fit the overall pattern or trend of a scatter plot is known as a ________
outlier
300
State the type of association, whether it is strong or weak, and if it is linear or non-linear.
Negative, Weak, & Linear
300
What is the slope of the trend line in this scatter plot?
slope = 25
300
How many students think there should be final exams?
22 students
300
What is the relative frequency of all students who chose burgers? Round to the nearest tenth.
23.5%
300
__________ occurs in a scatter plot when there are distinct or separate groups of points.
Clustering
500
Hector surveyed 500 people and asked them how far they drive to work and what the last digit of their phone number is. What type of association would this scatter plot have?
No association
500
Write the equation of the trend line from this scatter plot:
y=-1/3x+8
500
How many students were surveyed in all?
311 students
500
What is the relative frequency of 8th graders that did not choose pizza? Round to the nearest tenth.
31.6%
500
What is is called when the change in one variable has no effect on the second variable.
No association