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12 years ago from now, let ages of ‘R’ and ‘L’ be ‘3x’ years and ‘5x’ years, respectively. So, 5x – 3x = 12 Or, 2x = 12 Or, x = 6 Present age of ‘L’ = 5x + 8 = 5 × 6 + 8 = 38 years Age of ‘L’, four years hence from now = 38 + 4 = 42 years
A physical instructor claims that the mean weight of students in school is greater than 82 kg with standard deviation 20. If a sample of size 81 studen...
Recession in industry is associated with the:
With which characteristic movement of a time series would you associate increasing demand of smaller automobiles?
The purchasing power of money is equal 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:
A B and C are three mutually exclusive and exhaustive events associated with a random experiment. If P(B) = (3/2) P(A) and P(C) = (1/2) P(B) then value...
Which of the following is NOT an approach for assigning the probability of the event?