Tree diagrams – Hard
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Question 1 of 25
1. Question
A class had to fill out a questionnaire. One person was picked at random to fill it out first. What is the probability that the person was a boy who wore glasses?
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Question 2 of 25
2. Question
A class had to fill out a questionnaire. One person was picked at random to fill it out first. What is the probability that the person was a girl who had ginger hair?
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Question 3 of 25
3. Question
A class were asked on their hair colour and gender in a survey. What is the probability that the person was a boy who had brown eyes?
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Question 4 of 25
4. Question
A year 3 class were observed on their eye colour and then a student was picked at random. What is the probability that the person was a girl who had green eyes?
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Question 5 of 25
5. Question
A class were asked on whether they prefer sweet or savoury food, then one person was selected at random. What is the probability that the person was a girl who liked sweet food?
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Question 6 of 25
6. Question
The weather forecast was shown for the next day. Based on the Tree Diagram, what is the probability that it would rain but not be cloudy?
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Question 7 of 25
7. Question
The weather forecast was predicted for the next day. Based on the Tree Diagram, what is the probability that it would be cloudy when it isnâ€™t snowing?
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Question 8 of 25
8. Question
A survey was sent out regarding pets to members of the public. One person who had filled in the survey was chosen at random. What is the probability that the person owned a female cat?
CorrectIncorrect 
Question 9 of 25
9. Question
Member of the public were asked whether their hamster or gerbil was a male or female. Then one person was chosen at random. What is the probability that the person owned a male hamster?
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Question 10 of 25
10. Question
A class had to fill out a questionnaire about their favourite drink. One person was picked at random to reveal their answer. What is the probability that the person was a girl who liked fizzy drinks?
CorrectIncorrect 
Question 11 of 25
11. Question
What is the probability that it will hail and be below 10Â°c?
CorrectIncorrect 
Question 12 of 25
12. Question
Some coloured counters were placed in a bag. Two students were asked to take a counter out of the bag each, randomly, without replacing it. What is the probability that the first student took out an orange counter and the second student took out a purple counter? CorrectIncorrect 
Question 13 of 25
13. Question
Some coloured balls were placed in a tub. Two year 6 students were asked to take a counter out of the tub each, randomly, without replacing it. What is the probability that the first student took out a green ball and the second student didnâ€™t take out a green ball? CorrectIncorrect 
Question 14 of 25
14. Question
Some coloured shapes were placed in a sack. Two members of the public were asked to take a shape out of the tub each randomly, without replacing the shape. What is the probability that the first person took out a brown shape and the second person didnâ€™t take out a red shape? CorrectIncorrect 
Question 15 of 25
15. Question
Some coloured pencils were placed into a box. Two sixth form students were asked to take a pencil out of the box each, randomly, without replacing the pencil. What is the probability that the first student took out an orange pencil and the second student took out a blue pencil? CorrectIncorrect 
Question 16 of 25
16. Question
Some coloured balls were placed in a bag. Two students from a school were each asked to randomly take a ball out of the bag, without replacing it. What is the probability that the first student took out a black ball and the second student didnâ€™t take out a black ball? CorrectIncorrect 
Question 17 of 25
17. Question
Some coloured shapes were placed in a box. Two members of the public were asked to take a shape out of the box each, randomly, without replacing it. What is the probability that the first person didnâ€™t take out a pink shape and the second student didnâ€™t take out a white shape? CorrectIncorrect 
Question 18 of 25
18. Question
A survey was done to see which fruit was best, apple or pear. Members of the public answered which fruit they thought was best in the survey. Afterwards, two of those people were picked. What is the probability that the first person picked said apple and the second person picked said pear? CorrectIncorrect 
Question 19 of 25
19. Question
A survey was done to see which fruit was best, orange or banana. A year 3 class answered which fruit they thought was best. Afterwards, two of those students were picked. What is the probability that the first student picked said banana and the second student picked said banana as well? CorrectIncorrect 
Question 20 of 25
20. Question
A survey was done to see which fruit was best, grape or banana. Some university students said which fruit they thought was best, in the survey. Afterwards, two of those students were picked. What is the probability that neither person said grape was their favourite? CorrectIncorrect 
Question 21 of 25
21. Question
A survey was done to see which fruit was best, plum or apricot. Members of the public said which fruit they thought was best in the survey. Afterwards, two of those people were picked. What is the probability that the first person picked said plum and the second person picked said plum as well? CorrectIncorrect 
Question 22 of 25
22. Question
A survey was done to see which fruit was best, Kiwi or Lemon. A year 12 class said which fruit they thought was best, in the survey. Afterwards, two of those students were picked. If the first student said Kiwi, what is the probability that the second student said kiwi? CorrectIncorrect 
Question 23 of 25
23. Question
A questionnaire was done to see what drink was best, hot or fizzy. Members of the public said which drink they thought was best. Two of those people were then picked. If the first person said fizzy drinks, what is the probability that the second person said hot drinks? CorrectIncorrect 
Question 24 of 25
24. Question
A survey was done to see what drink was best, fizzy or water. A class of year 6 students said which drink they thought was best. Then two of those students were picked. If the first student said water, what is the probability that the second student said water? CorrectIncorrect 
Question 25 of 25
25. Question
A class of year 10 students were asked on their hair colour in a survey, then 2 people were picked at random. What is the probability that the first person had ginger hair and the second person had brown hair? CorrectIncorrect