1 / 52

UNIT 9: Probability

UNIT 9: Probability. Review. #1. What is the difference between theoretical and experimental probability?. #1 Answer. Experimental Probability requires and experiment and data collection.

boysen
Télécharger la présentation

UNIT 9: Probability

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. UNIT 9: Probability Review

  2. #1 What is the difference between theoretical and experimental probability?

  3. #1 Answer Experimental Probability requires and experiment and data collection. Theoretical Probability predicts the outcome of an event by using a ratio of the number of times the event can occur to the total number of possibilities.

  4. #2 The probability of a given event can be represented as a ratio between what two numbers?

  5. #2 Answer 0 and 1

  6. #3 As the number of trials ____, the experimental probability of an event approaches the theoretical probability of that event.

  7. # 3 Answer higher or larger

  8. #4 Five cards are labeled with the letters {M, A, R, C, H}. Find P(R)

  9. #4 Answer

  10. #5 If you flip a coin 40 times, about what percent of the tosses would be expected to land tail-side up?

  11. #5 Answer 50%

  12. #6 If you roll a six-sided number cube, what is the probability of rolling an odd number?

  13. #6 Answer

  14. #7 What is the probability of pulling out a pair of red socks from a drawer that has 4 blue, 6 white, 5 red, 3 black, and 2 brown pairs of socks?

  15. #7 Answer

  16. #8 If the weatherman says there is a 75% chance of rain, what chance is it that it won’t rain?

  17. #8 Answer 25%

  18. #9 You have 2 quarters, 6 dimes, 5 nickels, and 3 pennies in your pocket. What is the probability of pulling out a dime?

  19. #9 Answer

  20. #10 What is the probability of spinning an even number on a spinner with a sample space of the numbers 1, 2, 3, 4, 5, 6, 7, 8? Write the answer as a decimal, fraction, and a percent.

  21. #10 Answer .5, 50%,

  22. #11 What is the probability of a day of the week beginning with the letter S?

  23. #11 Answer

  24. #12 After tossing a coin 50 times, Joey had tossed heads 34 times and tails 16 times. This was an example of what type of probability?

  25. #12 Answer Experimental Probability

  26. #13

  27. #13 Answer D. 68%

  28. #14 Miriam spun the pointer on a spinner 35 times. Her results are in the table. What was her experimental probability that the spinner will land on green?

  29. #14 Answer B.

  30. #15 Kendra rolled a number cube and got 5 six times in a row. Based on her results, what is the probability of rolling a 5? • 100% B. 16.7% C. 50% D. 30%

  31. #15 Answer A. 100%

  32. #16 If you roll a fair number cube 300 times, which is the most likely number of times you would roll a 5? • 10 B. 50 C. 150 D. 300

  33. #16 Answer B. 50

  34. #17 A coin is tossed 18 times. Which experimental outcome is most consistent with theoretical probabilities? • 6 heads and 12 tails • 9 heads and 9 tails • 4 heads and 14 tails • 10 heads and 8 tails

  35. #17 Answer B. 9 heads and 9 tails

  36. #18 Chantal tossed a fair coin 100 times. How many heads and tails are most likely out of the 100 tosses? • 25 heads and 75 tails • 0 heads and 100 tails • 40 heads and 60 tails • 50 heads and 50 tails

  37. #18 Answer D. 50 heads and 50 tails

  38. #19 Suppose you plan to roll two number cubes 72 times. How many times would you expect to get doubles? • 6 B. 17 C. 12 D. 36

  39. #19 Answer C. 12 Set up a proportion:

  40. #20 What is the probability of getting a six when rolling a fair number cube one time? • 12.5% B. 16.7% C. 20% D. 25%

  41. #20 Answer B. 16.7%

  42. #21 Which of these events has a probability of 0? • Drawing a green marble from a bag containing three red marbles. • A fair coin landing on tails • A number cube landing on 3 • Two number cubes landing with a sum of 12 on the faces.

  43. #21 Answer • Drawing a green marble from a bag containing three red marbles.

  44. #22 A bag contains one red marble and one green marble. You pick a red marble and you put it back. If you randomly select another marble, what is the probability that it will be green? A) 0 B) .25 C) .5 D) 1

  45. #22 Answer C) .5

  46. #23 What is the sample space for the experiment consisting of rolling a standard number cube? • {2, 4, 6} • B. {1, 2, 3} C. {1, 2, 3, 4, 5, 6} D. {All real numbers}

  47. #23 Answer 8. C

  48. #24 Which answer could NOT be a sample space for an experiment consisting of drawing one card from a standard deck? • {black card, red card} • {ace, two, three…queen, king} • {heart, diamond, club, spade} • {suit, number, picture card}

  49. #24 Answer D. {suit, number, picture card}

More Related