Normal swing occurs mostly when the ball is fairly new.

Since last May, however, such swings have occurred almost once every three weeks.

When a large swing occurs, this can cause a carry reversal.

And sometimes, in some countries, wide swings have occurred in short periods.

A swing can only occur if the tail is sliding sideways over the ground.

Many violent swings and ground loops occur because of heavy braking after landing.

Some Case Studies But how often do big swings occur at the end of an election campaign?

"Back then, swings like we've seen recently occurred practically every year."

The biggest swing of the final occurred on the diagramed deal.

Large swings (3 to 6 standard deviations from the mean) occur in the market far more frequently than the normal distribution assumption would predict.