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If X and Y are two independent Poisson random variables, then show that the conditional distribution of X given X+Y is binomial.
Now assume institutional cache is used. Hit rate for cache is 0.6. Determine the total average response time.
A contingency table has 5 rows and 4 columns. How many degrees of freedom are there?
Smaller the p-value in test of hypothesis, the more important the results are.
Determine the coefficient of determination. Assuming a direct relationship between the variables, what is the coefficient of correlation?
An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of 3.3 emails per hour. Assume the arrival of these emails is approximated by the Poisson distribution.
Take your data and arrange it in the order you collected it. Count the total number of observations you have, and label this number N. Then create another set of data starting from one and increasing by one until you reach N.
Equation of the regression line - Evaluate the equation of the regression line and Find y' when x=47 years.
Lauren Moore has sold her business for $500,000 and wants to invest in condominium units ( which she intends to rent) and land ( which she will lease to a farmer).
Assuming that the dogs did better than what would be expected with random guessing, did they do well enough to be used for actual medical diagnoses? Why or why not?
Based on these data, does it seem that strength of relationship between sales and promotions expenditures is enough to permit using linear regression forecasting model? Describe why?
Assume we have set of blood pressure with a mean of 80 Diastolic, and a sample standard deviation of 10 points. If we assume a normal distribution of Diastolic blood pressures,
What is the probability that a roulette ball will come to rest on an even number other than 0 and 00?
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