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Find the indicated probabilities using the geometric distribution or the Poisson distribution. Then determine if the events are unusual. If convenient use the Poisson probability table or technology to find the answer
A major hurricane is a hurricane with wind speeds of 111 miles per hour or greater. During the last century, the mean number of major hurricanes to strike a certain countries mainland per year was about 0.60. Find the probability that in a given year (a) exactly one major hurricane will strike the mainland, (b) at most one major hurricane will strike the mainland and (c) more than one major hurricane will strike the mainland.
(A) P(exactly one major hurricane will strike the mainland)
(B) P(at most one major hurricane will strike the mainland)
(C) P(more than one major hurricane will strike the mainland)
suppose iq scores were obtained from randomly selected siblings. for 20 such pairs of people the linear correlation
1. each supplier is rated on a 10-point scale 10 highestfor four different criteria price quality delivery and
based on our past history of winning bids on projects the probability of winning the next contract to build a school is
a psychologist is studying the effect of drug and electroshock therapy on a subjects ability to solve simple tasks. the
What is the difference between the R and R-squared terms? What does each tell you? How large should the R-squared term be if you want to show that the two variables are practically related?
analyze the advantages and disadvantages of using a repeated-measures study or within-subjects design instead of a
WonderDrug Company wants to test the effectiveness of a new headache drug. What sampling technique (simple random, stratified random, cluster, convenience) is WonderDrug Company using in each of the following studies?
words are displayed on a computer screen with background colors of red and blue. results from scores on a test of word
the point estimate for a processor that world correctly for at least 1000 hours based on a sample size of 100 is .91.a
In what areas of your business is it important to draw inference? Describe a time when drawing an inference may have hurt your business.
questionto test the efficacy of admissions or release an emergency room embarks on a controlled experiment. each
A population has a mean of mu = 30 and a dtadard deviation of 5. if 5 points were added to every score in the population, what would be the new values for the mean and standard deviation?
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