Association Correlation

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase.

• As the temperature increases, the number of visitors increases.

• As the visitors increase, the temperature decreases.

• No correlation

A connection between two or more things

• Correlation

• Linear

• Trend Line

• Scatter Plot

When the data closely resembles a line

• Strong Correlation

• Weak Correlation

• No Correlation

• Correlation

What is the correlation coefficient of the regression line?

• 0.986

• 2527

• total length (cm) = 1.1forklength (cm) + 4.1

• 4.1

A perfect positive correlation has a correlation coefficient of ____. 

Which situation would most likely show a negative association?

• the age of a car and its resale value

• the weight of a dog and the amount of food it eats per day

• the number of minutes exercised per day and a person's height

• the amount of time a boy plays video games and his savings account

perfect negative correlation has a correlation coefficient of ____. 

• 1

• -1

• 0

What type of correlation (association)?
The outside temperature and the amount of layers you wear. 

• Positive correlation

• Negative correlation

• No correlation

• All of the above

As shown in the table, a person's target heart rate during exercise changes as the person gets older. Find the correlation coefficient (r).

• -0.999

• -0.664

• 0.998

• 1.503