Question
For an experiment we have the following data set: n = 4, ∑ X = a,∑ Y = 10,∑ XY = 21,∑ X2 = 30,∑ Y2 = 30 the correlation coefficient is -0.8 then the value of a is:
More Welfare Economics Questions
- Question 1
- For a distribution with mean, median, mode and standard deviation 25, 24, 26 and 5 respectively, Karl Pearson's coefficient of skewness equals to:
- For the discrete distribution, the Pearson's coefficient of skewness β2 is always:
- The variation among the observations of each specific class is known as:
- Question 5
- For ANOVA table the F - statistics is:
- If the third quartile of the following data set 7,10,7,8,9 is 9.5, then the value of quartile deviation is:
- The memory-less property is followed by which of the following continuous distribution:
- If X and Y represent waiting time and service time of customers in shopping mall, have joint destiny f(x, y) = kx; 0 ≤ y ≤ x ≤ 1, then the value of k is
- X1 and X2 represent number of occurrences of event A and 8 that follow Poisson distribution with mean rate λ1 and λ2 , If Y1 and Y2 are inter-occurrence ti...
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