A lad was asked his age by his friend. The lad said “The number you get when you subtract 25 times my age from twice the square of my age will be thrice your age. If the friends age is 14 then what will be the age of lad.
Let the age be x As per the question 2x2 –25x-42=0 X= 28 or –3 So, the required answer is 28 years
The credit manager at a Departmental store collects data on 100 of her customers. Of the 60 men, 40 have credit cards (C). Of the 40 women, 30...
In a bivariate regression equation of Y on X consisting of 20 observations, the explained and unexplained variations are 40 and 60 respectively. Calcula...
Calculate Domestic Income:
