11. Given
$$\sum $$dxdy = 186, $$\sum $$dx = 11, $$\sum $$dy = 7, N = 10, $$\sum $$d2x = 215, $$\sum $$d2y = 163.
Find out correlation
$$\sum $$dxdy = 186, $$\sum $$dx = 11, $$\sum $$dy = 7, N = 10, $$\sum $$d2x = 215, $$\sum $$d2y = 163.
Find out correlation
12. Regression equation of x on y can be
13. If μ is equal to 25 then value of mean for exponential probability distribution is
14. Which one of the following statement is true?
15. In a random sample of 100 people, 40% of them are non-vegetarian. What proportion of the whole population is non-vegetarian?
16. Standard error of mean is computed by
17. 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.
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.
18. Given,
This is a
This is a
19. The difficulties with errors may be overcome by
20. The probability that a college student will be graduate is 0.4. What will be the probability that out of 5 students none will graduate?
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