What is correlation? Give its types. Briefly explain the various methods of calculation of correlation between X and Y variables. (UPSC 2019, 10 Marks, )

सहसंबंध क्या है? इसके प्रकार बताएं। X और Y चर के बीच सहसंबंध की गणना की विभिन्न विधियों को संक्षेप में समझाएं। (What is correlation? Give its types. Briefly explain the various methods of calculation of correlation between X and Y variables.)

What is correlation? Give its types. Briefly explain the various methods of calculation of correlation between X and Y variables. (UPSC 2019, 10 Marks, ) EN ह function dochangelang(val) { if (val != "") { window.location = val; } }

What is correlation? Give its types. Briefly explain the various methods of calculation of correlation between X and Y variables. (UPSC 2019, 10 Marks, )