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An industry representative claims that 40 percent of all satellite dish owners subscribe to at least one premium movie channel. In an attempt to justify this claim, the representative will poll a randomly selected sample of dish owners.
The probability that none of the dish owners in the sample subscribes to at least one premium movie channel.
Critically discuss the relationship between a sample and the type of population it is taken from? What population factors should be taken into consideration?
Finding the probability of each event in a group of events of different possibility
A pharmaceutical company has determined that if a new cholesterol-reducing drug is manufactured (introduced to the market) the following probability distribution will describe this drug's contribution to the company profits during the next six mon..
According to an IRS study, it takes a mean of 330 minutes for taxpayers to prepare, copy and electronically file a 1040 tax form. This distribution of times follows the normal distribution and the standard deviation is 80 minutes.
What is the probability that a soldier is a female?
Verify that the fitted values have the same mean as the actual y-values, and that the residuals have mean zero and show that the variance of the fitted values plus the variance of the residuals adds up to the variance of y. Find the R-squared.
A study conducted at a certain college shows that 53% of the school's graduates find a job in their chosen field within a year of graduation. Find the probability that among 7 randomly selected graduates, at least one finds a job in his or her cho..
Each inspector makes his or her inspection at a different time. What is the probability that at least one inspector will find a defective widget?
Transportation problem using the stepping stone method
You are assigned to be part of a team of three analysts of a global management consulting company where of the entire work force of analysts. 55% have had no experience in telecommunications
Suppose event A and event B are mutually exclusive with the P(A)=12 and P(B)=1/3.Which of the following statements best describes these two events?
What fraction of the calls last between 4.2 and 5 minutes?
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