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Event, Outcome, Bias,
Conditional, mutually
exclusive
What is the probability (as a
fraction) of winning the main
prize in the Euro-millions
lottery?
What is the average payout on
this?
There are 7 red and 4 white discs in a bag. A disc is drawn, then replaced
and another disc is drawn.
Disc 1
Disc 2
Probabilities
Find the probability
that both discs are
the same colour.
A bag contains 4 red balls and 6 blue balls. A ball is taken at random from the
bag and not put back in. A second ball is then removed from the bag.
Ball 1
Ball 2
Probabilities
Find the probability
that both balls are
a different colour
Memorise the 2 rules:
p (A and B) = p (A) x p (B)
p (A or B) = p (A) + p (B)
The probability that
an egg has a double
yolk is 0.1.
Sukhpal has 3 eggs in
his basket. What is
the probability that
at least one of these
eggs has a double
yolk?