These Year 11 probability multiple choice questions check your understanding of probability: experiments, Venn and tree diagrams with 10 questions for pupils aged 15-16. Each question has four answers, and the right one is explained as soon as you choose.
Year 11 probability multiple choice questions: the 10 questions
A probability of 1 means the event is
P(not A) when P(A)=0.35 is
A coin is biased. In 100 tosses there are 62 heads. The estimate of P(head) is
P(rain)=0.2. Expected wet days in 50 days:
Two dice, the number of outcomes in total is
When events are independent, P(A and B)=
In a tree diagram you ... along the branches.
A bag has 3 red and 2 blue. One red is removed (no replacement). P(second is red) is
P(A)=0.4, P(B)=0.3, mutually exclusive. P(A or B)=
In a Venn diagram the outside region shows
How to use these Year 11 probability multiple choice questions
First, read each question carefully before you look at the four answers. Then work the answer out on paper, so that you do not simply guess. After that, read the explanation, even when you are right. If you score less than 7 out of 10, go back to the probability: experiments, Venn and tree diagrams lesson.
Finally, practise more with the probability: experiments, Venn and tree diagrams worksheet and the quiz. Moreover, all the pages of this chapter work together, so you can move between them at any time. For example, many pupils read the lesson on Monday, practise on Wednesday and test themselves on Friday.


















