iGCSE (2021 Edition)
8.05 Probability using combinations
Interactive practice questions
A box contains 6 pens of different colours: red, green, blue, yellow, black and white. Two pens are drawn at random without replacement.
a
How many possible selections are there?
b
What is the probability of drawing the green and black pens?
Easy
2min
A newspaper editor is deciding which of $5$5 articles to print on the front page.
Easy
2min
A container contains twelve cards. The cards are marked with the numbers 1 to 12. From the container, five cards are drawn at random without replacement.
Easy
2min
The nominations for the school captain and vice captain were Tom, Fred, Irene, Lisa and Kate. The school captain is chosen first, then the vice captain.
Easy
1min
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