Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Business Statistics and Research Methods Correlation and regression of two variables
Which one of the following is not an assumption of a simple linear regression model?
1
The set of expected values of the dependent variable y for given values of independent variable x, are normally distributed.
2
The standard deviation and variance of expected values of the dependent variable about the regression line are constant for all values of the independent variable x for the set of observations in a sample.
3
The dependent variable y is a continuous random variable.
4
The errors in the value of y are identical in successive observations.