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The moment generating function for a random variable X is given by Mx(t) = (1/4)+ (3/4)*(1/(1-t)), t>1. Determine formulas for the density function and distribution function. Sketch graphs for fx and Fx.
in a manufacturing process a random sample of 49 bolts manufactured has a mean length of 1.67 inches with a standard
a binomial probability experiment is conducted with the given parameters. compute the probability of x successes in the
a random dot stereogram is defined in wikipedia as a pair of images of random dots which when viewed with the aid of a
Suppose that highway gas mileage rates for both of these cares are uniformly distributed over a range of from 20 to 30 mpg. What proportion of these cars would fall into the 22 to 27 mpg range? Compute the proportion of cars that get more than..
Construct and interpret a 90% confidence interval to estimate the mean fuel savings in the population of all such vehicles.
What is the difference between a causal model and a time- series model? Give an example of when each would be used. What are some of the problems and drawbacks of the moving average forecasting model?
question a professional hockey player played 20 seasons. the following table shows the number of games in which he
a bank estimated the average amount of money withdrawn from its atm machines over weekends exceeds 150 per customer
a statistical tutorial centre has been designed to handle a maximum of 25 students per day. suppose that the number x
The hospital was 12.0 weeks with the standard deviant of 1.0 week. Out of 100 patients, how many would you expect to stay longer than 13 weeks?
q1. how would you explain the analysis of variance assuming that your audience has not had a statistics class before?
the content of a particular constituent in two different brands of a drug measured in milligrams was found to be as
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