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Suppose that 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 (0 < p < 1) 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. Find the expected value of the position of the particle after n jumps.
Internet sites often vanish or move, so that references to them can't be followed. In fact, 13% of Internet sites referenced in papers in major scienti?c journals are lost within two years after publication.
A researcher wants to know if elderly people who own dogs are equally as likely to pay visits to their doctors than those who do not own dogs.
Assuming that the relationship between year tt and cost cc is linear, develop a formula for predicting the average cost of a compact car in the future measuring the variable tt as years since 2000. Be sure to use the lower case variables tt and cc..
An error with the release valve has caused the setting on the mint release machine to "shift". Assume that the machine shift is filling the bags with a mean weight of 11.56 ounces and a standard deviation of 0.05 ounces
in constructing a confidence interval for a mean with unknown variance with a sample of 25 items bob used z instead of
Suppose speeds of vehicles on a particular stretch of roadway are normally distributed with mean 36.6 mph and standard deviation 1.7 mph.
ANCOVA allows us to assess the differences in group means while controlling for other variables. The reason(s) why it is useful to control for other variables is/are it and How would you interpret a correlation coefficient of -1
question the sugar producers association wants to estimate the mean yearly sugar consumption. a sample of 16 people
Statistics is a very powerful topic that is used on a daily basis in many situations. For example, you may be interested in the age of the men who attend Silver's Gym. You could not assume that all men are the same age. Thus, it would be an inaccu..
customers come to a barber shop with the frequency of 3 per hour. suppose y4 is the time when the 4th customer has
Imagine you are trying to convince a dubious experimentalist of the merits of quasiexperimental research. What arguments would you use to convince him or her of its value?
In a latin square experiment, with 4 different golf-ball designs (A,B,C and D); if we suppose that A is the standard golf-ball design and the other three designs are newly developed. Which statistical method must we use to compare the three new d..
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