Associations
Interpretations
Trend Lines
Predictions
100
The association described in the scatter plot:
positive association
100
A point that does not fit the overall pattern or trend is called ___________
an outlier
100
The graph that demonstrates a good line of fit (trend line)
Graph 2
100
The equation y=11x+12 represents the number of retail stores in a city over the years where x represents the years since 1990 and y represents the number of stores.
Find the number of stores in 1990.
12
200
Association in which as one variable increases, the other also increases.
Positive Association
200
The point that is an outlier in the graph:
(20, 20)
200
The y-intercept of the trend line.
45
200
The equation y=11x+12 represents the number of retail stores in a city over the years where x represents the years since 1990 and y represents the number of stores.
Find the number of stores in 2010.
232 stores
300
The association between a person’s height and that person’s IQ.
No Association
300
The graph that demonstrates a positive, non-linear association:
Graph 3
300
The slope of the trend line.
12.5 or 25/2
300
The equation y=11x+12 represents the number of retail stores in a city over the years where x represents the years since 1990 and y represents the number of stores.
Find the year there were 133 stores.
2001
400
The association between the number of absences a student has and that student’s GPA.
a Negative Association
400
The correct statement for this graph:
Statement 8
400
The equation of the trend line:
What is
y=-1/3x+8?
400
The year you would expect 5% of the population to smoke cigarettes
2024
500
The association when data points are close together.
a Strong Association
500
The scatter plot that can be used to show the relationship between the number of students in a school and the number of unused lockers
Graph 5
500
What the slope represents in the context of this situation? (Be Specific!)
People burn 15 calories every minute
500
The percentage you would expect to smoke cigarettes in 2016
10%