Question
How is S related to
T? Answer the questions based on the information given below. In a family of three generations, there are eight members R, S, T, U, V, W, Y and Z. Z is the father of Y. R is married to Z. R doesn't have any sibling. W is the sister-in-law of Z. V is the mother-in-law of W. T is married to V, who has a brother. S is not the uncle of Y.Solution
If A and B are mutually exclusive, the general addition rule is:
The deseasonalised time - series data will have only trend (T), cyclical (C) and irregular (I) components and is expressed as:
If Arithmetic mean and coefficient of variation of x are 10 and 40 respectively, then the variance of y = 10 – 2x is:
A Poisson distribution has a double mode at x = 1 and x = 2. The probability for x = 1 or for x = 2 of these two values is:
If a discrete random variable X follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20, the value of P(|X-14| < 5) will be:
The first four moments of a distribution about the origin are -1.5,17,-30 and 108. The third moment about the mean is:
For a normal distribution, which of the following is true?
If the population skewness of the observations 8,6,3, 1,2,5 is 0.233, then the population skewness of 16,12,6,2,4,10 is:
The variance of degenerate random variable is:
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