9.PS.3

Which step involves analyzing and justifying the relationship of the quantitative bivariate data in scatterplots?

• Analyze data

• Organize data

• Collect data

• Formulate questions

What does the line of best fit represent in a scatterplot?

• The maximum value in the data

• The average of the data points

• The outlier points

• The trend in the data

When analyzing scatterplots, what does a correlation coefficient of -0.8 indicate about the relationship between the variables?

• No relationship

• A strong positive relationship

• A strong negative relationship

• A weak positive relationship

What is the purpose of organizing and representing numeric bivariate data using scatterplots?

• To confuse the viewer

• To simplify the data

• To make it harder to analyze

• To visually represent the data

How can technology assist in organizing and representing data in scatterplots?

• By adding unnecessary complexity

• By making the data more confusing

• By providing visual representations

• By avoiding data collection

When determining the data needed for a formulated question, how many items should be collected?

• Less than 10 items

• Exactly 20 items

• More than 30 items

• No more than 20 items

Which of the following is NOT a valid relationship that can be observed in a scatterplot?

• Positive linear relationship

• Negative linear relationship

• Exponential relationship

• No relationship

What is the first step in the data cycle when working with scatterplots?

• Formulate questions

• Collect data

• Organize data

• Analyze data

How does sketching the line of best fit help in analyzing data in a scatterplot?

What is the purpose of sketching the line of best fit in a scatterplot?

• To represent the trend in the data

• To make the data look neat

• To show the average of the data points

• To confuse the viewer