Math 8 SP 1-4 Review

Front

What is an outlier in a scatterplot?

Back

An outlier is a point that is far outside the main cluster of points/ordered pairs.

Front

What type of correlation is indicated by a downward slope in a scatterplot?

Back

Negative correlation.

Front

What happens to the y values as the x values increase in a negative correlation?

Back

As x increases, y decreases.

Front

What percent of people who play an instrument do not play a team sport if 27.2% is the answer?

Back

27.2%.

Front

What percentage of girls have blonde hair if the answer is 30%?

Back

30%.

Front

Define correlation in the context of scatterplots.

Back

Correlation describes the relationship between two variables, indicating how one may change in relation to the other.

Front

What does a positive correlation look like on a graph?

Back

A positive correlation shows that as one variable increases, the other variable also increases.

Front

What is the range of values for correlation coefficients?

Back

Correlation coefficients range from -1 to 1.

Front

What does a correlation coefficient of -1 indicate?

Back

A perfect negative correlation.

Front

What does a correlation coefficient of 0 indicate?

Back

No correlation between the variables.