Year 10
Core
Year 10
Core
Find probabilities from frequency trees
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Lesson details
Key learning points
- 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.
Licence
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.
A
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.
A
B
Q3.
This Venn diagram shows the number of students who study art, history and geography. Calculate P (Art ∩ Geography)
A
B
Q4.
This Venn diagram shows the number of students who study art, history and geography. Calculate P(not history).
A
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?
A
B
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?
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?
A year 11 student who passes the test
The total number of students who failed the test