Correlation and Predicting on Scatter Plot

You would like to display the data between the price of shampoos purchased and the amount of money spent on hair appointments. Which display would be most appropriate?

• Pie Chart

• Scatter Plot

• Two Way Table

• A Box and Whisker Plot

A correlation coefficient of 1 means...

• Perfect linear association

• Near perfect linear association

• Moderately Linear

• Weak Association

What type of correlation is pictured?

• Positive

• Negative

• No correlation

What is this? When one variable goes up, the other variable goes up.

• Positive correlation

• Negative correlation

What is this? When one variable goes up, the other variable goes down.

• Positive correlation

• Negative correlation

When analysing a scatter plot you must address

• form, direction, strength

• type, direction, strength

• form, slope, type

• strength, slope, intercept

A scatterplot with a Moderate, Positive Relationship would have an r value between

• 0.5 and 0.74

• 0.25 and 0.49

• 0.49 and 0.75

• 0.6 and 0.8

Bivariate Data is typically graphed using what type graph?

• histogram

• scatterplot

• pie chart

• all of these

The measure of linear association between two variables is called

• correlation

• causation

• outliers

• strength

What type of association does this scatter plot represent?

• positive linear association

• negative linear association

• non-linear association

• no association