University:
Missouri State University
Course:
MTH 343 | Foundations of Probability and Statistics for Teachers
Academic year:

2020
Views:

151

Pages:

2
Author:

u1cen279b

Name: Young Key Pd: Date: PROBABILITY AND ODDS WORKSHEET Example: Jessica has a normal deck of cards, which contains 52 cards. She asks her friend Sarah to draw a card. What is the probability that Sarah will select the queen of hearts? 1/52 only I queen of hearts in the deck of 52 cards What is the probability that Sarah will not select the queen of hearts? 51/52 51 other cards (other than the queen of hearts) out of 52 cards What are the odds in favor of Sarah selecting the queen of hearts? favoratyle tor )fovor = 9cxeenof moarts all ottver cos8s = 1 51 1:51 I to 51 What are the odds against Sara selecting the queen of hearts? Unfavor. Favorabe all other casts queen of hearts 51 51:1 51 tol Susie has a spinner that has four sectors. One is yellow, one is orange, one is blue and one is red. Calculate the following: B 1. What is the probability of spinning a yellow? 12. What is the probability of not spinning a yellow? 1/4 I out of the 4 colors is yellow 3 colors are not yellow 3/4 3. What are the odds in favor of spinning a yellow? unfar - yellow not yellow 3 1:3 4. What are the odds against spinning a yellow? unfar not yellow 3 fav yellow 3:1 Sammy has a number cube (dice). Calculate the following: 5. What is the probability of rolling a 6? 1/6 I six out of Six numbers. 6. What is the probability of not rolling a 6? 5/6 5 numbers are not 6 out of 6 numbers. 7. What are the odds in favor of rolling a 6? fav w)fav = (5ix)/(1 - 5) = 1/5 1:5 8. What are the odds against rolling a 6? tncav tav = (1 - 5)/(six) = 5/1 5:1 9. What is the probability of rolling an even number? (2, 4, 6)/(1 - 6) = 3/6 = 1/2 half of the six numbers are even 11. What are the odds in favor of rolling an even number? fuu wnfav = (2, 4, 6)/(1, 3, 5) = 3/3 = 1/1 * 1 / 1 10. What is the probability of not rolling an even number? rollinganaded (1, 3, 5)/(1 - 6) = 3/(Lo) = 1/2 half numbers are not even 12. What are the odds against rolling an even (ln(fev))/(fav) = (1, 3, 5)/(2, 4, 6) = 3/3 = 1/1 1 A sweepstakes has 500 entries. You have purchased one ticket. Calculate the following: 13. What is the probability that you will win the sweepstakes? L 500 I have I ticket. out of the 500 fotal tickets 14. What is the probability that you will not win the sweepstakes? 499/560 there are 499 other tickets out of the 500 tofal tickets. 15. What are the odds in favor of you winning the sweepstakes? 16. What are the odds against you winning the sweepstakes? (fny)/(Lnfau) = 1/499 1:499 con 6o.v Gav = 499/1 499:1 Challenge questions: 17. If you purchase two tickets in the sweepstakes, does that double the probability that you will win? Yes 500 2 500 0.002 0.004 0.002 doubled (x2) is 0.004 18. If you purchase two tickets instead of one, use one of the following words to describe the likelihood of you winning the sweepstakes: Still out of 500 tickets (still 498 other tickets). Certain, Impossible, (Unlikely 0.2% * vs 0.49 0 not impossible I have a chance but not a good one

Probability and Odds Worksheet

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