An association of art museums releases a study reporting that museums with restaurants have a greater number of annual visitors.

Which statement describes the best conclusion to draw from the study?



Museums without a restaurant can increase their number of annual visitors by offering a restaurant.
There may be a correlation between having a restaurant and having a greater number of annual visitors.
Not having a restaurant decreases the number of annual visitors to a museum.
Having a restaurant causes people to visit a museum more frequently.