Given P(B) = 0.46, P(AandB) = 0.21 , P(AorB) = 0.51 , what is P(A) ?
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Q: Given P(B) = 0.40, P(A and B) = 0.14, P(A or B) = 0.51, what is P(A)?
A: P(B) = 0.40, P(A and B) = 0.14, P(A or B) = 0.51
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A: Formula : P(A or B) = P(A) + P(B) - P(A n B)
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Q: what is P(B)
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Q: Given P(B) = 0.30, P(A and B) = 0.15, P(A or B) = 0.43, what is P(A)?
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Q: Given that P(A) = 0.3, P(B) = 0.2, and P(A and B) = 0.05, Find P(BIA) 0.5 0.667 0.45 0.25 1 0.167
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A: Given information- P (B) = 0.78 P (A∩B) = 0.18 P (B|A) = 0.82 P (B/A) is given by-
Given P(B) = 0.46, P(AandB) = 0.21 , P(AorB) = 0.51 , what is P(A) ?
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- A mayor running for re-election claims that during his term, average municipal taxes have fallen by $125. A conscientious statistician wants to test this claim. He surveys 37 of his neighbors and finds that their taxes decreased (in dollars) as follows: 121, 139, 121, 125, 118, 145, 141, 91, 127, 136, 144, 154, 131, 139, 139, 125, 108, 130, 125, 106, 137, 148, 154, 134, 137, 112, 96, 114, 114, 126, 133, 129, 94, 129, 148, 163, 121 The statistician assumes a population standard deviation of $19. Do you think the statistician should reject the mayor's claim? Why or why not? Step 1: State the hypothesis. ?v= Step 2: Determine the Features of the Distribution of Point Estimates Using the Central Limit Theorem. By the Central Limit Theorem, we know that the point estimates are [Select an answer with distribution mean and distribution standard deviation Step 3: Assuming the Claim is True, Find the Probability of Obtaining the Point Estimate. P? ✓ ? ♥ = P(? ? ♥The University Secretary wants to determine how University grade point average,GPA (highest being 4.0) of a sample of students from the University depends on a student’s high school GPA (HS), age of a student (A), achievement test score (AS), average number of lectures skipped each week (S), gender of a student (where M=1 if a student is male or 0 otherwise), computer or PC ownership of a student (where PC=1 if a student owns a computer or 0 otherwise), the means of transport to school (drive, bicycle or walk; where D=1 if a student drives to campus or 0 otherwise, B=1 if a student bicycles to campus or 0 otherwise), and finally, the subject major of the student (finance, human resource, marketing and accounting; where F=1 if a student majors in finance or 0 otherwise, HR=1 if a student majors in human resource or 0 otherwise, MR=1 if a student majors in marketing or 0 otherwise). Use the correlation matrix and dummy regression output to answer the questions. GPA HS A AS…200 students took a test twice; 135 students passed the test on both. 35 students failed the test twice. However, 14 students passed the test the first time, but failed the second time. 16 students failed the first time, but passed the second time. What is the reliability coefficient? a. .90 b. .85 c. .79 d. .75
- When does Counterbalancing will be inappropriate?The University Secretary wants to determine how University grade point average, GPA (highest being 4.0) of a sample of students from the University depends on a student’s high school GPA (HS), age of a student (A), achievement test score (AS), average number of lectures skipped each week (S), gender of a student (where M=1 if a student is male or 0 otherwise), computer or PC ownership of a student (where PC=1 if a student owns a computer or 0 otherwise), the means of transport to school (drive, bicycle or walk; where D=1 if a student drives to campus or 0 otherwise, B=1 if a student bicycles to campus or 0 otherwise), and finally, the subject major of the student (finance, human resource, marketing and accounting; where F=1 if a student majors in finance or 0 otherwise, HR=1 if a student majors in human resource or 0 otherwise, MR=1 if a student majors in marketing or 0 otherwise). Use the correlation matrix and dummy regression output to answer the questions. GPA HS A…A coach of a cross country team asked all 200 of the runners who ran at a meet two questions: Did you get less than 8 hours of sleep last night? Yes No Did you achieve a personal record in this meet? Yes No The coach saw an association between the amount of sleep and achieving a personal record for the runners. Which statement provides evidence for this association?
- 4)Given P(A) = 0.15, P(B) = 0.19, and P(B|A) = 0.34, what is P(A and B)?According to a report, 62.8% of murders are committed with a firearm. (a) If 100 murders are randomly selected, how many would we expect to be committed with a firearm? (b) Would it be unusual to observe 73 murders by firearm in a random sample of 100 murders? Why? (a) We would expect to be committed with a firearm. (b) Choose the correct answer below. A. Yes, because 73 is greater than u + 20. B. No, because 73 is less than u - 20. C. Yes, because 73 is between u - 20 and u + 20. D. No, because 73 is between u - 20 and u + 20. E. No, because 73 is greater than u + 20.
