Question 718171
It can't be a probability because the maximum value
for a probability is 1. This means that something is
100% certain to happen. So, 2,3 and 4 are not
probabilities. It is OK to have {{{ p = 0 }}}. That means
there is no probability at all that a certain event will happen.
{{{ .1 }}} is OK, too. This says there is a 1 out of 10 chance
that something will happen.