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At a certain black spot, the number of traffic accidents per year follows a Po(10, 000)-distribution. The number of deaths per accident follows a Po(0.1)-distribution, and the number of casualties per accidents follows a Po(2)-distribution. The correlation coefficient between the number of casualties and the number of deaths per accidents is 0.5. Compute the expectation and variance of the total number of deaths and casualties during a year.
A researcher wanted to determine the mean number of hours per week (Sunday through Saturday) the typical person watches television. Results from the Sullivan Statistics Survey indicate that s=7.5 hours
question suppose that a population has mu 50 and sigma 10.a what is the z value for x 75?b what is the z value for x
A hospital accrediting agency reported that the survival rate for patients who had coronary bypass surgery in tertiary care centers was 93%. A sample of community hospitals had an average survival rate of 88%. Were the survival rates for the two t..
What is the probability that the number of tails is between 87 and 100 inclusive. round the final answer to 4 decimal places.
Developing the histogram and pie chart for the sample data.
Suppose in the problem above, that the two teams are evenly matched and each has probability 1/2 of winning each game. Find the expected number of games played.
Does the data prove a significant difference in mean times?
what is the probability that an organization selected at random will have at least one of the three types of benefits?
you are designing a freezer that requires the production r-134a with t30 degrees c and a quality of 40. the feed
Support casinos in the sample? B) calculate a 95% confidence interval to estimate the population proportion of all residents who wupport casinos.
On the basis of the tornado diagram, advise your friend regarding either (1) whether to invest or (2) what to do next in the analysis.
A PC manufacturer claims that no more than 2% of their machines are defective. In a random sample of 100 machines, it is found that 5% are defective. The manufacturer claims this is a fluke of the sample.
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