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Suppose that P(A) = 0.4 and P(A∩B) = 0.12
(a) Find P(B|A)
(b) Are the events A and B mutually exclusive?
If P(B) = 0.3, are events A and B independent?
question trains arrive at a station at the rate of 25 per hour.a what is the probability that the time between trains
Graph the relationship between the two variables and is there sufficient evidence to infer that height and length of index fingers are linearly related?
If the research question were defined as will buyers purchase more of a product in a blue colored or silver package? the most appropriate type of research would be
Random from a large production had 8 defective discs. Determine a 98% confidence interval for the population proportion of the defective disc drives.
Find out the following Standard deviation of the swipe rate, What percentage of subway riders should re-swipe the card as they were outside acceptable range?
A company has just manufactured 1295 CDs, and 492 are defective. If 10 of the CD's are randomly selected for testing, what is the probability of the entire batch will be accepted
Would that daily sales figure be considered a potential outlier? why or why not? e) Find the probability that sales on a randomly selected day are at most $3445.
Calculate the z-test statistic to test the difference in SAT math scores from students in Delaware and New jersey. A sample of 45 students from Delaware had an average score.
Approximately how large should n be
the probability that a region prone to hurricanes will be hit by a hurricane in any single year is 15 . what is the
consider a binomial random variable where the number of trials is 9 and the probability of success on each trial is
Rental car gasoline prices per gallon were sampled at eight major airports. Date for Hertz and National car rental companies follow (USA today April 4, 2000)
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