In a Poisson distribution, the probability mass function is given by: \(\rho(x) = \frac{e^{-2}(2)^3}{3!},\) the mean value is:

Question

Which of the following statements are valid assumptions of the Ordinary Least Squares regression model?
(A) Expected value of the error term is zero
(B) Heteroskedasticity
(C) The model is linear in parameters
(D) Autocorrelation
Choose the correct answer from the options given below:

Answer 1

In a Poisson distribution, \( \lambda \) denotes the mean, with \( \lambda = 2 \) in this case.

The mean value is therefore \( 2 \). Hence, option (c) is the correct answer.

List-I(Statistical Concepts)		List-II(Description)
A	Power of a test	I	1- probability of making type II error
B	Multicollinearity	II	Where the sample mean differs from the population mean
C	Biased estimator	III	Correlation between explanatory variables in a regres sion
D	White noise error	IV	Errors with zero mean and constant standard deviation

Firm 2	Cooperate	Compete
Firm 1	5, 5	0, 10
Compete	10,0	2, 2

In a Poisson distribution, the probability mass function is given by: \(\rho(x) = \frac{e^{-2}(2)^3}{3!},\) the mean value is:

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The Correct Option is C

Solution and Explanation

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