Business Statistics - Study Mode

[#321] Which one of the following statement is true?
Correct Answer

(D) The signs of the two regression coefficients are always the same

[#322] In a random sample of 100 people, 40% of them are non-vegetarian. What proportion of the whole population is non-vegetarian?
Correct Answer

(D) 54.7% to 25.3%

[#323] Standard error of mean is computed by
Correct Answer

(B) $$frac{{{ ext{SD of sample}}}}{{sqrt {{ ext{Sample size}}} }}$$

[#324] The following two statements relate to probability distributions. Choose the correct statements being correct or incorrect. Statement I When 'p' and 'q' are equal in the binomial distribution, the shape of the distribution is perfectly symmetrical irrespective
of the size of 'n'. Statement II The mean and the variance of poisson distribution are not equal.
Correct Answer

(A) Statement I is correct, but Statement II is incorrect

[#325] Given, This is a
Correct Answer

(B) binomial distribution