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Suppose we are flipping a fair coin (i.e., probability of heads = 0.5 and probability of tails = 0.5). Further, suppose we consider the result of heads to be a success. What is the standard deviation of the binomial distribution if we flip the coin 5 times?
Getting data and making calculations can be the easy part. Understanding the real issues and asking the right questions can be more difficult. Reporting average travel time or the variability in competitors' price can be a computational exercise.
calls to the help line of a large computer distributor follow a passion distribution with a mean of 20 calls per
find the area under the curve for the following z-scores z -0.31 and z
the time to failure in hours of fans in a personal computer can be modeled by an exponential distribution with
Group 2 data [ 141, 139, 172, 131, 150, 125. Assume normal distribution, with equal variance in the two groups and conclusion for a=0.05.
art students are registered for the same class and attend independently of each other.student a 80 of the timestudent b
To estimate the size of the bear population on the Keweenaw Peninsula, conservationists captured, tagged, and released 50 bears. One year later a random sample of 100 bears included only 2 tagged bears.
the computer chips in notebook and laptop computers are produced from semiconductor wafers. certain semiconductor
These two questions related to Basic Statistics. The first question discuss about increasing scores and correlation widely spreading out
If 36 women are selected at random, find the mean, and standard deviation, of the population of sample means. Suppose that the sampling is done without replacement and use a finite population correction factor.
The manufacturer would like to establish inventory levels such that there is only a five percent chance of running out of stock. Where should the manufacturer set the inventory level?
an important application of regression analysis in accounting is in the estimation of cost. bycollecting data on volume
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