Question

Everyone who passes the test will
be awarded a degree. The
probability that Tom passes the
test is 0.5, and the probability that
John passes the test is 0.4. The
two events are independent of
each other.
what is
The probability that both Tom
and John get the degree

Answer 1

if they are independent, the the probability of the intersection (both) is the product of the probabilities.
i.e. you multiply them

Answer 2

also what will be the proprability that atleast one of them gets the degree

Answer 3

when e and f are independent and 'and' represents intersection