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1. A coin is randomly selected from a group of ten coins, the nth coin having a probability n/10 of coming up heads. The coin is then repeatedly ?ipped until a head appears. Let N denote the number of ?ips necessary. What is the probability dis- tribution of N? Is N a geometric random variable? When would N be a geometric random variable; that is, what would have to be done differently?
2. You are invited to a party. Suppose the times at which invitees are independent uniform (0,1) random variables. Suppose that, aside from yourself, the number of other people who are invited is a Poisson random variable with mean 10.
(a) Find the expected number of people who arrive before you.
(b) Find the probability that you are the nth person to arrive.
The price of shares of Bank of Florida at the end of trading each day for the last year followed the normal distribution. Assume there were 240 trading days in the year.
Construct a time series plot. What type of pattern exists in the data and show the four-quarter and centered moving average values for this time series.
A fair coin is tossed 6 times. What is the probability of getting exactly 3 heads in the 6 tosses?
A. Formulate a linear program that can be used to determine the percentage allocation to the bond fund and stock fund. The objective of the problem is to maximize the expected total portfolio return.
a 15 cm3 cylinder contains nitrogen at 70 atm and 20 degrees celsius. this cylinder is placed in a 10000 cm3 evactuated
The batteries in his calculator. What is the probability that all four batteries work? What are the mean and variance for the number of batteries that work?
1. When a movie producer decides whether to produce a major motion picture, the main question is how much revenue the movie will generate. Draw a decision tree of this situ ation, assuming that there is only one fundamental objective, to maximize ..
The probability of going to college is 0.4. What is the probability that the proportion of women who go to college is greater than 50%.
using the cv compare the variability of the two items. suggest reasons for any differencescv of item nr 1cv 0.01837cv
A cellular phone company advertises that the average age of its customers is lower than 30 years. It is known that the customer ages follow a normal distribution. A random sample of 16 of this company's customers responded as follows, when asked..
explain some of the differences between the method of distribution functions the transformation method for finding the
Consider a newly arriving customer to the checkout line. What is the probablility that this customer will not have to wait behind anyone?
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