Question
4.62
4.62
Find and explain some probabilities.
Can we have an
event
that has negative
probability
? Explain your answer.
Suppose
and
. Explain what it means for
and
to be
disjoint
. Assuming that they are disjoint, find the probability that
or
occurs.
Explain in your own words the meaning of the rule
.
Consider an event
. What is the name for the event that
does not occur? If
, what is the probability that
does not occur?
Suppose that
and
are
independent
and that
and
. Explain the meaning of the event {
and
}, and find its probability.