Unit 20 and 21 Quiz

There is a spinner with 10 equal areas, numbered 1 through 10. If the spinner is spun on time, what is the probability that the result is a multiple of 3 and a multiple of 2?

Solution: Multiples of 3 (3,6,9) Multiples of 2 (2,4,6,8,10) Intersection of sets (6) Number of acceptable values (1) Number of possible values (10) Probability (1/10)

There is a spinner with 15 equal areas, numbered 1 through 15. If the spinner is spun one time, what is the probability that the result is a multiple of 3 and a multiple of 5?

Solution: Multiples of 3 (3,6,9,12,15) Multiples of 5 (5,10,15) Intersections of the sets (15) Number of acceptable values (1) Number of possible values (15) Probability (1/15)

There is a spinner with 15 equal areas, numbered 1 through 15. If the spinner is spun one time, what is the probability that the result is a multiple of 3 or multiples of 5?

Solution: Multiples of 3 (3,6,9,12,15) Multiples of 5 (5,10,15) Union of the sets (3,5,6,9,10,12,15) Number of acceptable values (7) Number of possible values (15) Probability (7/15)

There is a spinner with 13 equal areas, numbered 1 through 13. If the spinner is spun one time, what is the probability that the result is a multiple of 5 or a multiple of 2?

Solution: Multiples of 5 (5,10) Multiples of 2 (2,4,5,6,8,10,12) Intersections of the sets (10) Number of acceptable values (1) Number of possible values (13) Probability (1/13)

There is a spinner with 14 equal areas, numbered 1 through 14. If the spinner is spun one time, what is the probability that the result is a multiple of 3 or a multiple of 4?

There is a spinner with 14 equal areas, numbered 1 through 14. If the spinner is spun one time, what is the probability that the result is a multiple of 3 or a multiple of 4?

There is a spinner with 11 equal areas, numbered 1 through 11. If the spinner is spun one time, what is the probability that the result of 2 or a multiple of 3?

Solution: Multiples of 2 (2,4,6,8,10) Multiples of 3 (3,6,9) Union of the sets (2,3,4,6,8,9,10) Number of acceptable Values (7) Number of possible values (11) Probability (7/11)

There is a spinner with 13 equal areas, numbered 1 through 13. If the spinner is spun one time, what is the probability that the result is a multiple of 3 or a multiple of 2?

Solution: Multiples of 2 (2,4,6,8,10,12) Multiples of 3 (3,6,9,12) Union of the sets (2,3,4,6,8,9,10,12) Number of acceptable values (8) Number of possible values (13) Probability (8/13)

There is a spinner with 13 equal areas, numbered 1 through 13. If the spinner is spun one time, what is the probability that the result is a multiple of 4 or a multiple of 6?

Solution: Multiples of 4 (4,8,12) Multiples of 6 (6,12) Union of the sets (4,6,8,12) Number of acceptable values (4) Number of possible values (13) Probability (4/13)