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1. Consider a point on the Trans-Australian Highway, where two old wombats live. Arrivals of cars at this point follow a Poisson distribution; the average rate of arrivals is 1 car per 12 seconds. a. One of these old wombats requires 12 seconds to cross the highway, and he starts out immediately after a car goes by. What is the probability he will survive? b. Another old wombat, slower but tougher, requires 24 seconds to cross the road, but it takes two cars to kill him. (A single car won't even slow him down.) If he starts out at a random time, determine the probability that he survives. c. If both wombats leave at the same time, what is the probability that exactly one of them survives?
Is there a relationship between sales and newspaper?
The annual salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected salary for an engineer with 45 years of experience.
If one-third of the University of Wisconsin teaching assistants (TAs) sign a petition calling for a collective bargaining election, an election will be held. A survey of 50 TAs indicates that 40% will sign the petition. What is the probability ..
Solve the following system of linear inequalities by graphing.
Explain the difference between a population and a sample. In which of these is it important to distinguish between the two in order to use the correct formula?
What is the value of the sample mean resonance frequency? The confidence level for one of these intervals is 90% and for the other it is 99%. Which is which, and how can you tell?
A rental agent claims that the mean monthly rent, mu, for apartments on the east side of town is less than $725. A random sample of 13 monthly rents for apartments on the east side has a mean of $724
Find a 99% confidence interval for mu1-mu2, the difference in population means when it is known in advance that the population variances are 4 and 5 respectively.
If campaign can be expected to also to rise the probability of best case scenario to 0.4, is it a good investment.
The mean salary of the nine employees of a small business is $52,000 per year. One employee, whose salary was $68,000, was red. Two new employees, who will each be paid a salary of $40,000, are hired. What is the new mean annual salary of the emp..
Can we conclude that mean time for game is less than 3.50 hours? Use.05 significance level.
Determine the average number of people you should ask in order to determine someone with same birtheday as yours.
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