The ratio of the ages of A, B and C, 5 years ago, was 4 : 5 : 7. The sum of their present ages is 135 years. What will be the sum of the ages (in years) of B and C, 3 years from now?
The correct answer is C
The probability of getting 9 cards of the same suit in one hand at a game of bridge is
The curve obtained by joining the points, whose x-coordinates are the upper limits of the class interval and y-coordinates are corresponding cumulative...
If each observation in a data set for number of employees in different divisions is doubled then the coefficient of quartile deviation:
The median of following observations 8, 9, 10, 8, 8, 10, 8, 9 is
The grouped data for the observation are as follows.
Class : 2-4 4-6 6-8...
If price-quantity are related for base year (0) and current year (1) are
∑ : p0q0 = 260,∑ : p1q0 = 395,∑ : p0q1 = 264,∑ : p1q1 = 422, t...
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...
With which characteristic movement of a time series would you associate increasing demand of smaller automobiles?
Which of the following is NOT an approach for assigning the probability of the event?
