Describing Relationships in Scatter Plots

This video tutorial introduces scatter plots, explaining their definition and how to describe them. It covers identifying gaps, clusters, and outliers, and discusses different types of correlation, including positive, negative, and no correlation. The tutorial also explains the strength of correlation and differentiates between linear and non-linear scatter plots.

What is a Scatter Plot?

• A list of numbers and their squares

• A graph showing the relationship between two sets of data

• A type of pie chart

• A map of stars in the sky

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What does a positive correlation in a Scatter Plot indicate?

• No relationship between the values

• All the points are clustered together

• As one value decreases, the other increases

• As one value increases, the other also increases

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What does a negative correlation in a Scatter Plot show?

• Both values increase at the same rate

• The points form a perfect straight line

• As one value increases, the other decreases

• There is no correlation between the values

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What does it mean if a Scatter Plot shows no correlation?

• All points are clustered in one corner

• Points are randomly distributed with no pattern

• Points are all in a straight line

• Points form a perfect circle

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What is an outlier in a Scatter Plot?

• A point where both values are zero

• A point that does not fit in with the rest of the data

• A point that fits perfectly with the trend

• The highest point on the graph

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What is a gap in a Scatter Plot?

• A point far away from all others

• An area with no points

• A cluster of points

• The highest point on the graph

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What does a cluster in a Scatter Plot indicate?

• A strong negative correlation

• An outlier

• A gap in the data

• A group of points closely packed together

What signifies a strong relationship in a Scatter Plot?

• Points are spread out widely

• All points are outliers

• There is no visible trend

• Points are very close together

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What does a non-linear relationship in a Scatter Plot look like?

• All points are on one side of the graph

• Points form a straight line

• Points are randomly placed

• Points form an obvious curve

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How can you describe a weak positive relationship in a Scatter Plot?

• There is no discernible trend

• Points are close together and going down

• Points are far apart and going up

• Points are close together and going up

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