Scatter plot Practice

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two data sets, with one variable plotted along the x-axis and the other along the y-axis.

Front

What does a strong negative correlation indicate in a scatter plot?

Back

A strong negative correlation indicates that as one variable increases, the other variable tends to decrease significantly.

Front

What does no correlation mean in the context of a scatter plot?

Back

No correlation means that there is no discernible relationship between the two variables being plotted; changes in one variable do not predict changes in the other.

Front

What type of correlation is indicated by an increase in outside temperature leading to a decrease in the number of layers worn?

Back

This indicates a negative correlation.

Front

How can you predict values using a trend line in a scatter plot?

Back

You can predict values by extending the trend line to the desired x-value and finding the corresponding y-value on the line.

Front

What is the purpose of a trend line in a scatter plot?

Back

The purpose of a trend line is to summarize the relationship between the variables and to make predictions based on that relationship.

Front

What does a positive correlation look like in a scatter plot?

Back

A positive correlation appears as an upward slope from left to right, indicating that as one variable increases, the other variable also increases.

Front

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

Back

The slope of a trend line indicates the strength and direction of the relationship between the two variables.

Front

How can outliers affect the interpretation of a scatter plot?

Back

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

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.