Question
For the variables X and Y, we collect 4 observations with ∑ X = 10,∑ Y = 14,∑ X2 = 30,∑ Y2 = 54,∑ XY = 31 The regression line y on x is
More Welfare Economics Questions
- Question 1
- The maximum deposit permitted under Mahila Samman Savings Certificate (MSSC) is:
- 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...
- At a round table, n persons are seated on n chairs. The probability that two friends from same college are sitting next to each other, is:
- If rp be partial correlation compound on sample rAB.c compound from sample of size n, the test statistic for significance testing is
- If Arithmetic mean and coefficient of variation of x are 10 and 40 respectively, then the variance of y = 10 – 2x is:
- The probability of getting a total of 7 on two dice thrown together is:
- 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:
- If the first, second, and third moment about the origin are 2, 8, and 18 respectively, then third moment about mean 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...
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)