State the properties of point estimators.
It is desirable for a point estimate to be: (1) Consistent. The larger the sample size, the more accurate the estimate. (2) Unbiased. The expectation of the observed values of many samples (“average observation value”) equals the corresponding
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State the Central Limit Theorem
What is sampling distribution?
The input coefficient matrix P for an economy is given by 
final demand vector 
Find the output levels.
The input coefficient matrix P for an economy is given b
and thefinal demand vector
Find the output levels.
Give examples of the problems where you can use: a) Poisson distribution. Does it have probability density function? Why or why not? Discuss your answer in the context of mean and variance of the Poisson distribution. b) In a sequence of 4 trials with probability of success p =1/3 , what is the probability that there will be exactly two successes?
Write a linear first-order differential equation and work out its general solution.
State the Central Limit Theorem.