IB Maths AA SL AA 4.3 Probability questions

Exam-style questions in the shape of Paper 1 and Paper 2, with full markschemes. Read the markscheme, or type, photograph or draw your answer and get it marked.

Paper

Paper 1, no calculator Paper 2, calculator

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Question 1

Paper 2, calculatorEasy5 marks

A student uses the spinner shown in Figure 1. Each of its six sectors is equally likely to be selected. Let $A$ be the event that the spinner lands on a number greater than $4$

(a)

List the outcomes in $A$

[1]

(b)

Determine $P(A)$

[1]

(c)

State $P(A')$ where $A'$ is the complement of $A$

[1]

(d)

Determine the expected number of times the spinner lands on a number greater than $4$ in $30$ spins.

[1]

(e)

In a separate trial of $30$ spins, the spinner lands on a number greater than $4$ eight times. Calculate the relative frequency of $A$

[1]

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