If a constant 60 is subtracted from each of the values of X and Y, then the regression coefficient is
The regression coefficients are independent of change of origin.
What is the yearly salary of Mr. Rohan?
I. Sohan earns Rs. 44000 more than Mohan in a year who earns Rs. 16000 more than Rohan per annum.
...
Find the ratio of Ram’s age to Rahul’s age.
Statement I: Ram’s age is equal to Alok’s age and Alok age is 2 years l...
How many boys are there in the class?
I. The number of girls is 30% of the number of boys.
II. The ratio of the number of boys to that of girls is 3:5.
What is the area of the circular Track?
Statement-I: The area of equilateral triangle that can be inscribed in circular Track is 48√3 m2
What was the per cent profit/loss made/incurred by selling an article for Rs. 24000?
Statement I. The ratio between the selling price and the c...
What is marked price of the product?
Statement I – After giving the 10% discount on mark price the shopkeeper make a profit of Rs. 45 by sell...
How much time will train A take to cross a platform of length 400 m?
Statement I: The train A crosses another train B in 40 seconds.
S...
Find the area of a circle.
Statement I: The radius of a circle is one-third of the area of the rectangle.
Statement II: Area of rectangle ...
What are the marks obtained by Nannu in Accounts?
Statement I: Marks obtained in English is as much more than that in Economics as the marks obt...
What is the speed of boat in still water?
Statement I: The boat can cover 16 km downstream distance in 2 hours.
Statement II: Speed of t...