A person is abseiling down a rock face attached to a rope .
It is improbable that a person lowers themselves down the rock face while their spotter watches carefully from below
There is a better than even chance that a person lowers themselves down the rock face while their spotter watches carefully from below
It is improbable that a person lowers themselves down the rock face while their spotter watches carefully from below
A person lowers themselves down the rock face while their spotter watches carefully from below