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The US department of transportation maintains statistics for consumer complaints for 100,000 airline passengers. In the first nine months of 2009 consumer complaints were 0.99 per 100,000 passengers. What is the probability that in the next 100,000 passengers that will be
A) no complaints?
B) at least one complaint?
C) at least two complaints?
Show your work in detail and make a graph if possible of how you obtained your answer.
Consider random variables X and Y with a joint pmf, given in the following table. Compute the conditional expectations E[X|Y = 1] and E[X|Y > 1].
the allowed fee for wedding services is 425. one ceremony provider is suspected of charging more than the allowed
The ________ is the probability of observing a sample value as extreme as, or more extreme than the value observed, given that the null hypothesis is true.
For the following statement, write the null hypothesis and the alternative hypothesis. Also label which one is the claim.
a passenger can travel from home to another city by car c ship s place p or train t. in a given year the passenger
The prices (in dollars) for a sample of roundtrip flights from Chicago, Illinois to Cancun, Mexico are listed. Find the mean, median, mode, range, Q1, Q2, variance, and standard deviation of the flight prices.
Completion of today's paper. If X denotes the number of papers belonging to seniors among those checked, will X have a binomial distributuin?
Explain why you would choose these two? What did you learn about correlation and causation while completing the course? Differentiate between correlation and causation.
Our bodies have a natural electrical field that is known to help wounds heal. Does changing the field strength slow healing? A series of experiments with newts investigated this question.
A researcher claims that the average age of people who buy lottery tickets is 64. A sample of 30 is selected and their ages are recorded as shown below.
let x and y be independent exponential random variables with respective parameters 2 and 3. find the cdf and density of
Find the probability that the average of those counts is more than 81.4 mosquitos per square meter. Assume that the variable is normally distributed.
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