Summing probabilities | Maths | Quizalize & Oak National Academy

Starter quiz

A __________ diagram is a representation used to model statistical/probability questions, where branches represent different possible events or outcomes.
- 'tree' ✓
What is the probability that the spinner lands on the number 2?
- ${1}\over{2}$
- ${1}\over{3}$ ✓
- ${2}\over{3}$
- ${2}\over{6}$
What is the probability that the spinner does not land on the number 2?
- ${1}\over{2}$
- ${1}\over{3}$
- ${2}\over{3}$ ✓
- ${2}\over{6}$
Which values represent the probability that this spinner lands on an integer?
- ${1}\over{3}$
- 1 ✓
- 1%
- 100% ✓
- ${3}\over{3}$ ✓
Based on the Venn diagram, which numbers belong to both sets A and B?
- 1
- 2
- 3 ✓
- 6 ✓
- 9
An integer between 1 and 10 is selected at random. Based on the Venn diagram, what is the probability that the outcome is from set A?
- ${1}\over{7}$
- ${3}\over{7}$
- ${1}\over{10}$
- ${3}\over{10}$ ✓
- ${9}\over{10}$