11. Correlation

What does it mean to say two variables are positively associated? Negatively associated?

True or False: Correlation implies causation.

"[DATA] Influential Observations Zillow.com is a site that can be used to assess the value of homes in your neighborhood. The organization provides a list of homes for sale as well as a Zestimate, which is the price Zillow believes the home will sell for. The following data represent the Zestimate and sale price (in thousands of dollars) of a random sample of recently sold homes in Charleston, South Carolina.

a. Draw a scatter diagram of the data, treating the Zestimate as the explanatory variable and sale price as the response variable."

Suppose you work a part-time job and earn \$15 per hour. Draw a scatter diagram that might represent the relation between your gross pay and hours worked. Is this a deterministic relation or a probabilistic relation?