Positive Negative or No Correlation

The number of overtime hours worked and the amount paid

• Positive correlation

• Negative correlation

• No correlation

The number of absences a student has from school and the student's grade point average

• Positive correlation

• Negative correlation

• No correlation

The temperature of a bowl of soup and the amount of time after it is served

• Positive correlation

• Negative correlation

• No correlation

The size of a dog and the amount of dog food needed

• Positive correlation

• Negative correlation

• No correlation

As x increases, y increases

• correlation coefficient

• causation

• positive correlation

• negative correlation

What does the correlation coefficient for the data indicate about the strength of the linear association between the x and y variables Hint: what is the correlation based on the scatter plot

• strong negative

• weak negative

• strong positive

• weak positive

What type of correlation has one value increasing as the other value is also increasing?

• postive

• negative

• none

• cannot be determined

What would the correlation coefficient say about this linear association?

• strong correlation

• weak correlation

• no correlation

• medium correlation

Which value below could be the correlation of the scatterplot?

• -0.977

• -0.021

• 0.536

• 0.951

Which situation describes a negative correlation?

• the amount of time spent on your phone and the battery left on the phone

• the number of hours spent studying and the test score

• the number of miles driven and the amount of gas used

• hair color and intelligence