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OA Jo vogendod uppose that occur two ways: The first two trials are both successes or the first trial is a failure and the second is a success. Show that P(8) - 0.2. (Enter your probabilities as fractions.) P(B) = P(SS) + P(FS) 200 1000 80 What is P(8|the first trial is S)? (Enter your probability as a fraction.) P(B[the first trial is S) - Does this conditional probability differ markedly from P(8)? O They are nowhere near close. O They are very close

OA Jo vogendod uppose that occur two ways: The first two trials are both successes or the first trial is a failure and the second is a success. Show that P(8) - 0.2. (Enter your probabilities as fractions.) P(B) = P(SS) + P(FS) 200 1000 80 What is P(8|the first trial is S)? (Enter your probability as a fraction.) P(B[the first trial is S) - Does this conditional probability differ markedly from P(8)? O They are nowhere near close. O They are very close

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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Consider a population of voters. Suppose that there are N = 1,000 voters in the population, 20% of whom favor Jones. Identify the event favors Jones as a success S. It is evident that the probability of S on trial 1 is 0.20. Consider the event B that S occurs on the second trial. Then 8 can occur two ways: The first two trials are both successes the first trial is a failure and the second is a success. Show that P(8) = 0.2. (Enter your probabilities as fractions.) P(B) = P(SS) + P(FS) - 200 1000 1000 What is P(B|the first trial is S)? (Enter your probability as a fraction.) P(B|the first trial is S) = Does this conditional probability differ markedly from P(B)? O They are nowhere near close. O They are very close.
Transcribed Image Text:Consider a population of voters. Suppose that there are N = 1,000 voters in the population, 20% of whom favor Jones. Identify the event favors Jones as a success S. It is evident that the probability of S on trial 1 is 0.20. Consider the event B that S occurs on the second trial. Then 8 can occur two ways: The first two trials are both successes the first trial is a failure and the second is a success. Show that P(8) = 0.2. (Enter your probabilities as fractions.) P(B) = P(SS) + P(FS) - 200 1000 1000 What is P(B|the first trial is S)? (Enter your probability as a fraction.) P(B|the first trial is S) = Does this conditional probability differ markedly from P(B)? O They are nowhere near close. O They are very close.
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