$77. Determine the odds against the event occurring. 1. The probability of an event occurring is

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter6: Ratio, Proportion, And Probability
Section6.7: Probability And Odds
Problem 11E
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Show all steps. Leave your final answers in fraction form unless otherwise stated.
Determine the odds against the event occurring.
1. The probability of an event occurring is
Use the following information to answer the next two questions.
A survey of high students was used to estimate the percentage of students who participate in school and
non-school extra-curricular activities, as well as the percentage who do not participate in any extra-
curricular activities. The results of the survey are shown in the Venn diagram below.
Participation in School and Non-School Extra-Curricular Activities
School
Non - School
38%
26%
21%
2. Determine the odds in favour of randomly selecting a high school student who participates in school
extra-curricular activities.
3. Are the participation in school extra-curricular activities and the participation in non-school extra-
curricular activities mutually exclusive events? Justify your answer.
4. A game has three possible outcomes: X, Y, or Z. If P(X) = 0.6 and P(Y) = 0.3, what is the probability
of event Z?
15%
Re
Transcribed Image Text:Show all steps. Leave your final answers in fraction form unless otherwise stated. Determine the odds against the event occurring. 1. The probability of an event occurring is Use the following information to answer the next two questions. A survey of high students was used to estimate the percentage of students who participate in school and non-school extra-curricular activities, as well as the percentage who do not participate in any extra- curricular activities. The results of the survey are shown in the Venn diagram below. Participation in School and Non-School Extra-Curricular Activities School Non - School 38% 26% 21% 2. Determine the odds in favour of randomly selecting a high school student who participates in school extra-curricular activities. 3. Are the participation in school extra-curricular activities and the participation in non-school extra- curricular activities mutually exclusive events? Justify your answer. 4. A game has three possible outcomes: X, Y, or Z. If P(X) = 0.6 and P(Y) = 0.3, what is the probability of event Z? 15% Re
Use the following information to answer the next question.
An internet job recruitment company, Companyl, claims on their website that their
company doubles the probability of successful job offers compared to another job
recruitment company, Company2. The website claimed that the odds of the Company2
being successful in job offers were 2:5, and that Companyl odds of success are 4:5
5. Explain whether or not the website's claims are accurate.
6. State whether or not the following events are dependent or independent. Explain your reasoning.
a) Drawing two names out of a hat one at a time
b) Spinning 2 spinners at the same time
7. Of 15 rats in a cage, 5 have black fur, 6 have white fur, and the remaining 4 have brown fur. If 3 rats
are randomly chosen from the cage, determine the probability that all of the selected rats have brown
fur.
earn
Transcribed Image Text:Use the following information to answer the next question. An internet job recruitment company, Companyl, claims on their website that their company doubles the probability of successful job offers compared to another job recruitment company, Company2. The website claimed that the odds of the Company2 being successful in job offers were 2:5, and that Companyl odds of success are 4:5 5. Explain whether or not the website's claims are accurate. 6. State whether or not the following events are dependent or independent. Explain your reasoning. a) Drawing two names out of a hat one at a time b) Spinning 2 spinners at the same time 7. Of 15 rats in a cage, 5 have black fur, 6 have white fur, and the remaining 4 have brown fur. If 3 rats are randomly chosen from the cage, determine the probability that all of the selected rats have brown fur. earn
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