YEAR 8 PROBABILITY STATISTICS REVIEW

19. In a class of 30, 10 play cricket, 12 play soccer and 14 play neither. Therefore...

23. A coin is biased so it is twice as likely to come up heads than tails. Therefore...

24. Which number goes in place of the ?

20. I play tennis but not AFL. Which statement is true?

8. In a sample of 200, 120 people had brown hair. In the population of 1000, I would expect

9. The mean of four numbers is 20. What does the 5th number need to be to reduce the mean to 18

25. How many people have a job or go to Marist?

3. What is the mode of the numbers 0, 20, 22, 20, 18

27. A student from Marist who participated in the survey is selected at random. Thus

7. I want to know the most popular sport at Marist. I only ask people who play cricket, so

14. Which of these events is complementary to "I pick a 10 from a deck of cards"

22. A bag contains strawberry and cola chupa chups. P(cola)=0.25. If there are 4 cola ones...

4. What is the outlier in the numbers 0, 20, 22, 20, 18

13. What is the complement of "I am late to school"

29. If converting this table into a Venn diagram, which number goes in the overlap of circles?

30. If I toss 2 coins, what is the probability that I get at least 1 head?

5. Which of the following is a type of categorical data?

2. What is the median of the numbers 0, 20, 22, 20, 18

6. I ask people for how many years they have attended Marist. This data is

10. The mean of three numbers is 12; the median is 14 and the range is 6. The three numbers are

15. The probability that it rains today is 0.24. The probability it does NOT rain is

12. If I roll a die, what is the probability that I roll a number that is at least 2?

26. How many people have a job or go to Marist but not both?

21. A bag contains red, blue, white marbles. If P(Red)=P(blue)=0.4, then

28. What is the probability a student selected at random would have a job?

16. If I roll a dice 3 times, the probability I get an odd number each time is 1/8. Therefore

18. What is the probability that a student owns either an iPhone or an iPod

1. What is the mean of the numbers 0, 20, 22, 20, 18

17. According to diagram, what is the probability someone owns an iPhone?

11. I roll a die, what is the probability that I roll either a 2 or 3?