Questions on Scatter Plots

Is there an outlier shown on this graph?

• Yes

• No

Which statement would be most accurate when looking at the scatter plot?

• y= 2x + 100

• y= 2x + 40

• y= 1x + 30

• y= 1x + 4

What is a cluster?

• Positive points on a plot

• Negative points on a plot

• A group of data points that are gathered around a particular value or trend

• The amount of plots on the line

Which situation would most likely have a scatter plot with a negative correlation?

• age of a baby and weight of a baby

• the amount of air in a balloon and the size of the balloon

• the temperature outside and the temperature inside

• the amount of questions missed on the test and the test grade

What type of correlation is this?

• Negative

• No Correlation

• Positive

• Linear

What correlation would this be?

• Positive

• Negative

• No Correlation

• Linear

Scatter plots ALWAYS have to have a positive or negative correlation

• True

• False

The following scatterplot was based on data of size in square feet (x) of several houses and price in dollars (y).

Is there a relationship between the two variables?

• There appears to be a negative linear relationship.

• There appears to be a positive linear relationship.

• There does not appear to be any linear relationship.

• There appears to be a non-linear relationship.

The following scatterplot was based on data of size in square feet (x) of several houses and price in dollars (y).

Does there appear to be an outlier in the data?

• Yes, the top, right data point could be considered an outlier.

• No, there is no outlier in the data.

• Yes, the bottom left data point appears to be an outlier.

• There appears to be a non-linear relationship.

The scatter plot was constructed using data on length in inches (𝒙) of several alligators and weight in pounds (𝒚). Check each selection that represents the relationship between weight and length for these alligators.

• There appears to be a positive relationship between length and weight, but the relationship is not linear.

• There are three observations that stand out as outliers.

• There are three observations that stand out as outliers.

• Without the outliers, the relationship between lenth and weight appears to be linear.