Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) General Knowledge Geography (World Geography) World Economic and Human Geography
Variable Y regresses with variable X with the conditions that \(\overline X = 6.50\), \(\overline Y = 4.50\) and b = 2.50 in the linear regression model (Y = a + bX), where \(\overline Y\) and \(\overline X\) are means of the respective variables and b refers to gradient of line of Y w. r. t X. Which one of the following values of parameter 'a' of the model is correct?
1
11.25
2
10.75
3
11.75
4
10.25