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Suppose that P(A) = .20, P(B) = .30 and P(A and B) = .10. Find...
1. P(A or B) = ___________
2. P(A and BC) = P(A occurs, but B doesn't) = ___________
3. P(A|B) = ____________
4. Show calculation/mention specific probabilities in answering: Are A and B independent events?
Massage therapy for athletes. Does a massage enable the muscles of tired athletes to recover from exertion faster than usual?
only 27 of us adults get enough leisure time exercise to achieve cardiovascular fitness. choose 3 adults at random find
suppose referendum to increase funding for education is on the ballot in a large town population over 100000. an exit
Excess postexercise oxygen consumption (EPOC) describes the energy expended during the body's recovery period immediately following aerobic exercise.
The sample mean life is 805 hours with 64 hours of the sample standard deviation. Is there enough evidence to conclude that the manufacturer's claim is true at the 5% significance level?
Production facilities must keep track of injuries on the job by their employees, known as recordables (injuries severe enough that they must be reported to the appropriate government agency).
If the plant continues to manufacture pipe of this quality, can you suggest a possible technique for quality control of the product? What cost factors enter the
What is the probability that 19 from a sample of 22 shoppers will spend less than $20? What is the probability that at least 12 but not more than 17 from a sample of 22 shoppers will spend less than $20?
At the 5% level of significance test whether the bottling process is carried out accurately or whether the filling machinery needs calibration. Use both the critical and the p-value approaches.
What is the probability of selecting a female or an accounting major? Which rule of addition did you apply?
new york city is the most expensive city in the united states for lodging. the mean hotel room rate is 204 per night
explain why increasing the sample size tends to result in a smaller sampling error when a sample mean is used to
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