Total number of employees in HR department = 150 × (1/3) = 50 Let total employees in Management and Sale be x and 3x respectively. And, total employees in Operation = 50 × (1 – 20/100) = 40 => 50 + x + 3x + 40 = 150 => 4x = 60 => x = 15 Required % = [(40 – 15)/40]×100 = 62.5%
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 probability of getting 9 cards of the same suit in one hand at a game of bridge is
The mean deviation and coefficient of mean deviation of 5 observation are 1.2 and 0.4. If the sum of the first four terms is 10, then the fifth term is...
Statistics is not applicable to ________ observation.
The mean and median of the distribution is 12 and 15. Then the mode equals to:
Completely randomized design is based on the principles of _________ and randomization only.
For the recorded observation, the coefficient of variation is 0.2 and the variance is 16. The arithmetic mean is: