a 'lucky dip' game at a school fair, a tub contains 50 prizes at the start of the fair.
ere are 20 superballs, 10 pens, 10 toy cars and 10 packets of sweets.
hat is the probability that the first person to visit the lucky dip:
wins a superball,
(b)
does not win a pen,
wins a packet of sweets,
(d)
does not win a toy car.
the first person wins a pen, what is the probability that the second person:
-wins a pen.
(f) does not win a toy car.
wins a packet of sweets?
