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Suppose we play a game where we start with c dollars. On each play of the game you either double or halve your money, with equal probability. What is your expected fortune after n trials?1. 2. Show that V(X) = 0 if and only if there is a constant c such that P (X = c)= 1.
3. Let X1,..., Xn ∼ Uniform(0, 1) and let Yn = max{X1,..., Xn}. Find E(Yn).
4. A particle starts at the origin of the real line and moves along the line in jumps of one unit. For each jump the probability is p that the particle will jump one unit to the left and the probability is 1-p that the particle will jump one unit to the right. Let Xn be the position of the particle after n units. Find E(Xn) and V(Xn). (This is known as a random walk.)
So construct a multiple regression model for predicting the crime rate based upon various explanatory variables unemployment rate, median income, education level.
lionel wants to play the crane machine arcade game the one with the mechanical claw to win a stuffed animal. he is good
Repetitions of numbers are not permitted, i.e., the same number cannot be used more than once in a total sequence. As examples, 27, 94 or 55 would not be permitted. How many different code groups can be designed?
the weights in pounds of discarded plastic from a sample of households summary statistics are n62 x1.911 s1.065 use a
What is the formula used to get percentile from z-score? I have z-scores but am using excel and want to be able to type in a formula to figure percent instead of coming here and continuing to figure it out.
in a community with a population of 10000 people the prevalence of a certain disease is 5. a screening test for this
Canada Elections Constructing OLS Regression for Candidates
I want to establish if a new product is worth marketing. At least 85 percent of the public must express interest in the product and for those that do the average cost they are willing to pay must be at least $47.50.
the probability that a randomly selected 1-year old male chipmunk will live to be 2 years old is 0.59966. a what is the
The heights of north American women are normally distributed with a mean of 64 inches and a standard deviation of 2 inches.
a sample of 40 ovservations is selected from one population. the sample mean is 102 and the sample standard deviation
when a newspaper article reports the results of a study and draws a conclusion without stating if the results are
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