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The doctrine of common employment was introduced in the English law probably as a defence to the principle of vicarious liability. This doctrine stated that an employer/master cannot be held liable for the injuries of his/her servant caused by the negligence of a fellow servant. Various laws came into place in England trying to abolish the doctrine of common employment as it was considered to be against the safety and betterment of the employees. After working on lot of permutations and combinations the defence of common employment was abolished by the Law Reform (Personal Injuries) Act, 1948.
If Arithmetic mean and coefficient of variation of x are 10 and 40 respectively, then the variance of y = 10 – 2x is:
If xi | fi , i = 1,2,...n is a frequency distribution with standard deviation 15 and mean 30, the coefficient of variation will be equal to:
The arithmetic mean of the following frequency distribution of number of members in family in the society
X: ...
If the mean and variance of a binomial distribution are 5 and 4, respectively, then the value of n is:
With which characteristic movement of a time series would you associate increasing demand of smaller automobiles?
For the two variables X and Y, the following observations are tabulated
X: 3 4 �...
For the variables X and Y, we collect 4 observations with ∑ X = 10,∑ Y = 14,∑ X2 = 30,∑ Y2 = 54,∑ XY = 31 The regressio...
X and Y are independent normal variables with mean 50 and 80 respectively and standard deviation as 4 and 3 respectively. What is the distribution o...
For a distribution with mean, median, mode and standard deviation 25, 24, 26 and 5 respectively, Karl Pearson's coefficient of skewness equals to:
For the variables X, Y and Z, rXY = 0.80, rXZ = 0.64, rY Z = 0.79 , then square of multiple correlation coefficient R2 X.Y Z is: