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MYP
Combined-event probability

MYP Standard Mathematics Combined-event Probability Questionbank

MYP Standard Mathematics Topic Combined-event… | RevisionDojo

Set notation

Venn diagrams

Single-event probability

Combined-event probability

Type

Difficulty

Question

If ${P(A) = 0.5}$ , ${P(B) = 0.4}$ , and ${P(A \cup B) = 0.9}$ , then events ${A}$ and ${B}$ must be:

True or False: If ${P(A|B) = P(A)}$ , it implies that knowing event ${B}$ has occurred does not change the probability of event ${A}$ occurring.

Given that ${P(A) = 0.5}$ , ${P(B) = 0.4}$ , and $P (A a$ , find the conditional probability .

When calculating probabilities for an experiment with three sequential stages, which representation is most effective for visualizing the multiplication of probabilities along paths?

A fair three-sided die (with faces numbered 1, 2, and 3) is rolled twice. What is the probability that at least one of the rolls results in a 3?

MYP MYP Standard Mathematics Topic Combined-event Probability Questionbank

Practice MYP MYP Standard Mathematics Topic Combined-event Probability with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for Combined-event Probability and mirrors Paper 1, 2 style where relevant.

Get instant solutions, detailed explanations, and build confidence with questions aligned to MYP examiner expectations.

A

g

1

e

x

t

{P(A|B) = P(A)}

B

)

=

0.7

{P(A ag{1} ext{or} B) = 0.7}

P (A a g 1 e x t or B) = 0.7

{P(A|B)}

1

Question

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Question

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mutually exclusive

independent

subsets of each other

equally likely

Tree diagram

Bar chart

Frequency table

Venn diagram

$\frac{2}{3}$

$x$

$\frac{1}{3}$

$\frac{4}{9}$

2

3

4

5

13

True

False

0.2

0.25

0.4

0.5