What is the purpose of using scatter plots in data analysis?

Scatter plots are used to visually assess the relationship between two variables and to identify trends or patterns.

What is the significance of the slope in a scatter plot?

The slope indicates the direction and steepness of the relationship between the two variables.

How can outliers affect the interpretation of a scatter plot?

Outliers can skew the results and may lead to incorrect conclusions about the relationship between the variables.

What does it mean if a scatter plot has a linear pattern?

A linear pattern indicates that the relationship between the two variables can be described by a straight line.

What is the role of the x-axis and y-axis in a scatter plot?

The x-axis typically represents the independent variable, while the y-axis represents the dependent variable.

How can you determine the strength of a correlation visually?

You can determine the strength of a correlation by observing how closely the data points fit a straight line.

What is an example of a positive correlation in real life?

An example of a positive correlation is the relationship between hours studied and test scores; generally, more study hours lead to higher scores.

What is an example of a negative correlation in real life?

An example of a negative correlation is the relationship between the amount of exercise and body weight; generally, more exercise leads to lower body weight.

3.1 Scatter Plots Flashcards

Student preview

15 questions

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1.

FLASHCARD QUESTION

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Tags

CCSS.8.SP.A.1

2.

FLASHCARD QUESTION

Front

What does a positive correlation indicate in a scatter plot?

Back

A positive correlation indicates that as one variable increases, the other variable also increases.

Tags

CCSS.HSS.ID.B.5

3.

FLASHCARD QUESTION

Front

What does a negative correlation indicate in a scatter plot?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Tags

CCSS.HSS.ID.B.5

4.

FLASHCARD QUESTION

Front

What does 'no association' mean in the context of scatter plots?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Tags

CCSS.HSS.ID.B.5

5.

FLASHCARD QUESTION

Front

How can you identify a strong correlation in a scatter plot?

Back

A strong correlation is identified when the data points are closely clustered around a straight line.

Tags

CCSS.HSF-LE.A.1B

6.

FLASHCARD QUESTION

Front

What is the difference between strong and weak correlation?

Back

Strong correlation means the data points are closely aligned to a line, while weak correlation means the points are more spread out.

Tags

CCSS.HSS.ID.B.5

7.

FLASHCARD QUESTION

Front

What does it mean if a scatter plot shows a strong negative correlation?

Back

It means that as one variable increases, the other variable decreases significantly.

Tags

CCSS.HSS.ID.B.5

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