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A recent survey of some World of Warcraft (WoW) players found that 52.3% of gamers play Alliance, 10.5% play warriors, and 5.8% are Alliance warriors. For a WOW player selected at random, let A be the event that the person plays Alliance, and W be the event that they play a warrior.
a. Obtain P(A), P(W), and P(A & W)
b. Determine P(A or W)
c. Find the probability that a randomly selected WoW player plays Horde (i.e. not Alliance).
What is the probability that a randomly chosen member of the population in the area will be exposed to at least one method of advertising during a given week?
Compute the present value of $4,000 paid in five years using the following discount rates: 10 percent in year 1, 2 percent in year 2, 12 percent in year 3
Create appropriate graphical displays for both groups, and write a brief report comparing their cholesterol levels. Here are the data:
Claculate the exponential also adjusted exponential smoothing forecast and linear trend forecasting. The hotel has experienced the following occupancy rates for the past 9 years.
The usable lifetime of a particular electronic component is known to follow an exponential distribution with a mean of 6.2 years. Let X = the usable lifetime
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Basic Computation: Probability as Relative FrequencyA recent Harris Poll survey of 1010 U.S. adults selected at random showed that 627 consider the occupation of firefighter to have very great prestige.
Consider a large population with a mean of 170 and standard deviation of 25. A random sample of size 36 is taken from the population. Calculate the standard error of the sampling distribution of this sample mean and round your answer to the hundre..
We are interested in determining whether or not the variances of the sales at two music stores (A & B) are equal. A sample of 10 days of sales at store A has a standard deviation of 30, while a sample of 16 days of sales from store B has a standar..
Bay area community college (BACC) has collected data comparing the starting salaries of their graduating students with last names beginning with the letters A through M with those whose last names begin with N through Z.
When she gets home, she finds the globe is faulty. What is the probability she chose a Shinewell's globe?
a random sample of 100 computer chips made by a manufacturer were inspected and 8 were found to be defective.a
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