In a group of twenty-two students, eleven have a graphical calculator and nine have a
computer at home (five students have both). Of the ten students who catch the bus to
college each day, none has a computer and six don't have a graphical calculator.
A student is selected at random from the
group.
(a) Draw a Venn diagram to show this information.
(b)
(c)
(d)
Write down two events that are mutually exclusive.
Find the probability that the student either catches the bus to college or has a
graphical calculator.
Determine whether the events "the student has a graphical calculator" and
"the student has a computer at home" are independent or not.