Exploring Scatter Plots and Correlation

What is a scatter plot?

• A diagram that shows the flow of data

• A table that lists data points

• A chart that displays data in a circular format

• A graph that shows the relationship between two sets of data

In which quadrant are most scatter plots found?

• Second quadrant

• Fourth quadrant

• First quadrant

• Third quadrant

What is univariate data?

• Data with one variable

• Data with two variables

• Data with three variables

• Data with no variables

Which of the following is an example of bivariate data?

• The atomic weight of calcium

• The height and weight of a mammal

• The price of high-speed internet from different companies

• The number of students in a class

What type of correlation exists when both X and Y values increase together?

• No correlation

• Inverse correlation

• Negative correlation

• Positive correlation

Which of the following is an example of negative correlation?

• The daily snowfall and the amount of shovels sold

• The more time you spend studying, the higher your test scores

• The month you were born and your birth weight

• The older a car gets, the less it is worth

What type of correlation is shown when there is no pattern in the data points?

• Positive correlation

• Negative correlation

• No correlation

• Inverse correlation

What type of correlation exists between the amount of classes taken and the amount of free time?

• No correlation

• Negative correlation

• Inverse correlation

• Positive correlation

What is another name for the line of best fit?

• Data line

• Correlation line

• Scatter line

• Trend line

What is the purpose of the line of best fit?

• To connect all data points

• To divide the data into two equal parts

• To approximate values not shown in the data

• To show the highest and lowest values