Mathematics Statistics 1 9709: PROBABILITY Topical Past Paper Questions

A box contains 3 red balls and 5 white balls. One ball is chosen at random from the box and is not returned to the box. A second ball is now chosen at random from the box. (i) Find the probability that both balls chosen are red. [1] (ii) Show that the probability that the balls c…

Out of a class of 8 boys and 4 girls, a group of 7 people is chosen at random. (i) Find the probability that the group of 7 includes one particular boy.

A shop sells two makes of coffee, Café Premium and Café Standard. Both coffees come in two sizes, large jars and small jars. Of the jars on sale, 65% are Café Premium and 35% are Café Standard. Of the Café Premium, 40% of the jars are large and of the Café Standard, 25% of the ja…