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In a large department store, there are 3 managers, 5 department heads, 15 clerks, and 8 stock persons. If a person is selected at random, find the probability that the person is either a manager or a stock person?
suppose the conditional distribution of y given x x is gamma with ? 4 and ? 1x and the marginal distribution of x is
College. Every year US News and World Report publishes a special issue on many U.S. colleges and universities.
What proportion of time will it take clean-up crew 56 or more hours for cleaning plant? Define the lower and upper limits of interval.
Frequent checks of unfilled orders at end of day reveal that distribution of unfilled orders follows Poisson distribution with mean of two orders. Sketch the histogram representing Poisson probability distribution of unfilled orders.
For a Brownian motion process X(t), let X0 = X(0), X1 = X(1), . . . represent samples of a Brownian motion process with variance αt. The discretetime continuous-value process Y=, Y2,... defined by Yn = Xn - Xn-1is called an increments process.
Is there any evidence to suggest that the mean physician density is different from 3.2? Use a = 0.05 and assume normality.
To qualify for security officers training, recruits are tested for stress tolerance. The scores are normally distributed with a mean of 62 and a standard deviation of 8. If only the top 15% of recruits are selected, find the cut-off score. What is..
q1.a study has shown that the interpupillary distance for all adult males is normally distributed with a mean of 65 mm
a crazy and lazy professor has developed a new grading system to make his life easier. he gives 10 a grades 80 b grades
Is it likely that a standard normal random variable will have a value less than -4? Explain.- Find a value such that the probability that the standard normal random variable will be above it is 0.85.
Suppose a multiple regression model is given by y = 4.44X1 -9.29X2 + 39.67. How do I determine what an interpretation of the coefficient of X1 be if X1 decrease
Select a process (a set of specified steps to accomplish a task) used at your place of work or in your interaction with a business that you would like
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