Question
Explain the types of correlation.
| Type | Meaning | Value of correlation coefficient | Example |
| Positive | Both variables either increase or decrease at the same time. | Between 0.00 and +1.00 | Higher the amount of practice, the greater the chances of success. So, practice and success are positively correlated. |
| Negative | An increase in one variable is associated with a decrease in the other and vice versa. | Between 0.00 to –1.00 | The higher the expenses, the lower the amount of savings. So, expenses and the amount of savings are negatively correlated. |
| Zero | Here, any change in one variable brings no significant change in other variables. | Zero | The level of income is not related to relations with neighbours. So, income level and relation with neighbours are not correlated. |
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