Aussie Maths & Science Teachers: Save your time with SmarterEd
A country school surveyed 120 of its students about the type of animals they have at home.
The results are recorded in the Venn diagram below, although the number of students who only own horses is missing.
If one of the students is selected at random, what is the probability that the student does not own a goat?
| `40/120` | `60/120` | `80/120` | `100/120` |
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Zilda asked 45 eighteen year olds whether they work, go to school, do both or do neither.
The Venn diagram shows the results.
What is the probability that a person randomly selected from the group goes to school and works, rounded to three decimal places?
| `0.778` | `0.158` | `0.093` | `0.079` | `0.067` |
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