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Question
Example for positive correlation is
Options
Income and expenditure
Price and demand
Repayment period and EMI
Weight and Income
Solution
Income and expenditure
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RELATED QUESTIONS
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 |
If the values of two variables move in same direction then the correlation is said to be
If r(X,Y) = 0 the variables X and Y are said to be
The variable whose value is influenced (or) is to be predicted is called
The variable which influences the values or is used for prediction is called
The correlation coefficient
If r = – 1, then correlation between the variables
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.
Calculate the Karl Pearson Correlation Co-efficient for the following data:
| Demand for Product X : | 23 | 27 | 28 | 29 |
30 |
31 | 33 | 35 | 36 | 39 |
| Sale of Product Y: | 18 | 22 | 23 | 24 | 25 | 26 | 28 | 29 | 30 | 32 |
