Closed form for the moment generating function
Find a closed form for the moment generating function of a discrete uniform random variable, that is, for the random variable X with pmf p(x) = 1/n for x = 1,2,3,....,n.(hint: use lemma 2.6.1.)
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Assume you have applied for two jobs, A and B. the probablility that you get job a is .13. the probability of being offered job B is .18. the probability of getting atleast one of the jobs is .26.what is the probability that you will be offered bo
1) A random sample of 60 college graduates results in a mean time to graduate of 4.58 years, with a standard deviation of 1.10 years. Construct and interpret a 98% confidence interval for the average time to graduate with a bachelor's degree.
The waiting time (in minutes) between ordering and receiving your meal at a certain restaurant is exponentially distributed with a mean of 10 minutes. The resturant has a policy that your meal is free if you have to wait more than 25 minutes after
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Organic food is believed to be healthier and safer, and you are willing to pay a premium for it. But, is it really true that organic food cost more than non-organic food? You want to test it. If it turns out to be true, you also want to find out t
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What is the total number of African American died from heart disease if they represent 13% of the 316,000,000 American population?
Customers come to a store as a Poisson process with rate 12 per hour. Compute the probability of three customers arriving within the first 12 minutes?
Describe the three most common causes of strength degradation of mechanical components. Give examples of each, with descriptions of methods used to prevent or reduce the chances of failure.
In 2010, a Gallup poll surveyed 1016 households in the U.S about their pets. Of those surveyed, 599 said they had at least one dog or cat as a pet. Find and interpret the 95% confidence interval for the population proportion.
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