The variable whose value is influenced (or) is to be predicted is called - Business Mathematics and Statistics

The variable whose value is influenced (or) is to be predicted is called

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dependent variable

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Correlation

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Chapter 9: Correlation and Regression Analysis - Exercise 9.3 [Page 228]

Chapter 9 Correlation and Regression Analysis
Exercise 9.3 | Q 9 | Page 228

Find the coefficient of correlation for the following:

X	78	89	96	69	59	79	68	62
Y	121	72	88	60	81	87	123	92

If the values of two variables move in the opposite direction then the correlation is said to be

The correlation coefficient from the following data N = 25, ∑X = 125, ∑Y = 100, ∑X² = 650, ∑Y² = 436, ∑XY = 520

The correlation coefficient is

The variable which influences the values or is used for prediction is called

If two variables moves in decreasing direction then the correlation is

The coefficient of correlation describes

Find the coefficient of correlation for the following data:

X	35	40	60	79	83	95
Y	17	28	30	32	38	49

Calculate the coefficient of correlation from the following data:

∑X = 50, ∑Y = – 30, ∑X² = 290, ∑Y² = 300, ∑XY = – 115, N = 10

Define Correlation.