Example for positive correlation is - Business Mathematics and Statistics

Example for positive correlation is

MCQ

Income and expenditure

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Correlation

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अध्याय 9: Correlation and Regression Analysis - Exercise 9.3 [पृष्ठ २२७]

अध्याय 9 Correlation and Regression Analysis
Exercise 9.3 | Q 1 | पृष्ठ २२७

Find the coefficient of correlation for the following:

Cost (₹)	14	19	24	21	26	22	15	20	19
Sales (₹)	31	36	48	37	50	45	33	41	39

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

The correlation coefficient is

Scatter diagram of the variate values (X, Y) give the idea about

If r = – 1, then correlation between the variables

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

If the points on the scatter diagram indicate that as one variable increases the other variable tends to decrease the value of r will be:

Define Correlation.

State and explain the different kinds of Correlation.