Association
Predicting
Correlation
Vocabulary
100
What type of correlation coefficient does this graph have?
weak negative
100
Based on the graph, if Joe earned $400, how many hours did he work?
25 hours
100
What is happening between length of running start and distance of jump?
positive: the further you run the further you jump
100
A graph with points to show the relationship between two sets of data
Un gráfico con puntos para mostrar la relación entre dos conjuntos de datos.
Scatter plot
200
If a scatterplot has no correlation coefficient then...
...its ordered pairs have no predictable pattern
200
About how many male math teachers were there in 2006?(include units)
35 teachers
200
Describe the correlation in the graph shown.
Weak Negative
200
A group of points that occur together.
Un grupo de puntos que ocurren juntos.
Cluster
300
What is the type of correlation?
no correlation
300
Miss Palmer made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?
75, 76, or 80
300
What type of correlation does this graph have?
strong positive
300
A data point that is very different from the rest of the data
Un punto de datos que es muy diferente del resto de los datos.
Outlier
400
Describe the correlation coefficient between the number of lanes rented and the number of people bowling.
strong positive
400
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Write the line of best fit using
y = mx + b.
y = 10x + 0
400
What type of correlation does this scatter plot show?
moderate negative
400
A line on a scatter plot that helps show the correlation between data sets more clearly.
Normally splits the data set in half.
Una línea en un diagrama de dispersión que ayuda a mostrar la correlación entre conjuntos de datos con mayor claridad. Normalmente divide el conjunto de datos por la mitad.
Line of best fit
500
Describe the correlation coefficient for the graph.
no correlation
500
What is a line of best fit used for?
To make predictions
500
Write the line of best fit for the following graph below:
y = -0.5/0.2x + 15.5
500
a number that is between -1 and +1 that indicates the relationship of two variables
Correlation Coefficient