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Lesson details

Key learning points

  1. In this lesson, we will learn how to use frequency trees to find probabilities including revision on how to draw frequency trees given some information.

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This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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4 Questions

Q1.
Some children were asked if they owned a cat or a dog. A child is chosen at random. Calculate the probability that a child who owns a cat is chosen.
An image in a quiz
A
Correct answer: B
C
Q2.
Some children were asked if they owned a cat or a dog. A child is chosen at random. Calculate the probability that a child who owns a dog or a cat is chosen.
An image in a quiz
A
B
Correct answer: C
Q3.
This Venn diagram shows the number of students who study art, history and geography. Calculate P (Art ∩ Geography)
An image in a quiz
A
B
Correct answer: C
Q4.
This Venn diagram shows the number of students who study art, history and geography. Calculate P(not history).
An image in a quiz
A
Correct answer: B
C

3 Questions

Q1.
Here is some information regarding a sign language course taken by some students in year 10 and year 11. A student is randomly selected. What is the probability that they are in year 11?
An image in a quiz
A
B
Correct answer: C
Q2.
Here is some information regarding a sign language course taken by some students in year 10 and year 11. A student is randomly selected. What is the probability that they passed the course?
An image in a quiz
Correct answer: A
B
C
Q3.
Here is some information regarding a sign language course taken by some students in year 10 and year 11. A student is randomly selected. What probability scenario is represented by the fraction 50 out of 150?
An image in a quiz
Correct answer: A year 10 students who fail the test
A year 11 student who passes the test
The total number of students who failed the test

Lesson appears in

UnitMaths / Probability 2 (Sample space, Venn diagrams and experimental)