Understanding Scatter Plots and Data Associations

Mrs. Huntley introduces scatter plots and key vocabulary, explaining how to use scatter plots to understand data. The lesson covers bivariate data, linear and nonlinear associations, and provides practical examples and exercises to identify positive and negative relationships. Students are encouraged to create Cornell notes and answer questions to reinforce learning.

What does 'bivariate data' refer to in the context of scatter plots?

• Data with two variables

• Data with no variables

• Data with one variable

• Data with three variables

In Suzy's mall survey example, what is the dependent variable?

• Number of items purchased

• Total amount spent

• Number of shoppers

• Type of items purchased

Which type of association is described when both variables increase together?

• Positive association

• Inverse association

• Negative association

• No association

What is indicated by a scatter plot where data points are tightly packed and form a straight line?

• Weak nonlinear association

• Strong linear association

• No association

• Weak linear association

If a scatter plot shows data points that bend rather than form a straight line, what type of association is it?

• No association

• Linear association

• Inverse association

• Nonlinear association

What kind of association would you expect between a person's height and their shoe size?

• Negative association

• No association

• Positive association

• Inverse association

Which of the following pairs is likely to have no association?

• Absences and GPA

• Number of letters in a name and IQ

• Height and shoe size

• Hours studied and exam grade

What is the expected relationship between the altitude of a hiker and the oxygen level in the air?

• No association

• Negative association

• Inverse association

• Positive association

Which scatter plot description matches a scenario where the size of a home increases the cost of utilities?

• Negative association

• Positive association

• No association

• Inverse association

What is the relationship between the temperature outside and the total gallons of gas sold at a gas station?

• Positive association

• Negative association

• No association

• Inverse association