Which of the following cannot be the probability of an event?

A man goes 80 m due east and 150 m due north. How far is he from the starting point?

The diameter of a sphere is 14 cm. Calculate its volume.

If -2 and 3 are the zeros of the quadratic polynomial x² + (a + 1) x + b then a = ___ and b = ______.

The distance of the point P (-6, 8) from the origin is ___ units.