Practice Welfare Economics Questions and Answers

• If the odds in favour of any random event A are 5 : 6, then the odds against the event are:
• Which of the following is the most relevant for deriving a point estimate?
• For the cumulative distribution function the upper quartile point is
• For ANOVA table the F - statistics is:
• If each observation is halved then the coefficient of quartile deviation
• If the first quartile of data set 8,10,8,7,9 is 7.5, then the value of quartile deviation is
• The interquartile range excludes ___ of the values.
• For the frequency distribution of X number of grammatical mistakes per line is as follows. X:            0              2     ...
• If price-quantity are related for base year (0) and current year (1) are ∑ : p0q0 = 260,∑ : p1q0 = 395,∑ : p0q1 = 264,∑ : p1q1 = 422, then Marshall...
• Which one is not non-probability sample method
• If A and B are manually exclusive events such that P(A)P(B) > 0 , then which option is correct?
• Which of the following is an example of using a sample to make inference about a population?
• If r and R denote correlation and multiple correlation coefficient for the data set for X1, X2 and X3 . Which option is correct?
• Which option is incorrect for the component of ti.me series.
• Which one is not basis of classification of data.
• The purchasing power of money is equal to:
• Using the method of semi-averages, secular trend is measured when:
• The mean and median of the distribution are 10 and 11 respectively, then the mode equals to
• Fundamental principles of design of experiment are (I) Randomization (II) Replication (III) Local control Which option is correct?
• The prices (in ₹) of different yarns (per kg) in two consecutive years are as follows. By simple aggregative method, the net price changes in % is: ...
• The average working hours per month of the staff aged over 50 years in a factory were 160 and that of the staff aged under 50 years were 210. The mean work...
• The Mean deviation about Median for the given data. 52, 56, 66, 70, 75, 80, 82 is:
• For a random variable x, the central moments (µi) of all order exist. The square of (2j + 1)th   moment (µ22j+1) is ...
• The memory-less property is followed by which of the following continuous distribution:
• If the random sample of size n is drawn without replacement from a finite population of size N, the correction factor for standard error of sample mean wil...
• The Excess Kurtosis of the Geometric distribution with parameter p is: ...
• Let (Xi, I ≥ 1} be independent and identically distributed random variables with P(Xi =1) = p = 1-P(Xi = 0), Sn = ∑ni = 1 X i . The distribution of Sn ...
• Which one is parameter from population?
• For the given figures of production of a sugar factory, the estimate of the production for 1976 using straight line trend with origin at the year 1972 by t...
• Which of the following methods is NOT used in computation of a seasonal index for time series?
• The second and fourth moment about mean for a distribution are 4 and 18 respectively. What is the value of Pearson's coefficient of skewness β ₂ ? ...
• For the study purpose, the mean of the observations is 148 gm and standard deviation is 17.4 gm. Approximately, the coefficient of variation equals to:
• The variance of degenerate random variable is:
• Statistics is not applicable to ________ observation.
• The mode (correct to two decimal places) for the given data is:
• Which of the following is NOT a way of the sampling?
• Five persons A, B, C, D and E occupy seats in a row at random. The probability that A and B sit next to each other 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:
• With reference to index numbers, which of the following statements is true?