Question

Give me a real-life example of

1. Two variables that have a strong positive correlation. Use Google or other research methods to find the correlation coefficient to support your claim. What reasons or conditions attribute to the strong correlation? Do some research, but do not make up a numerical example.
2. Two variables that have a strong negative correlation. Use Google or other research methods to find the correlation coefficient to support your claim. What reasons or conditions attribute to the strong correlation? Do some research, but do not make up a numerical example.

Answer 1

A positive correlation is a relationship between two variables where if one variable increases, the other one also increases. A positive correlation also exists in one decreases and the other also decreases.

Examples:

1. Monthly electric bill will increase as the outside temperature increases
2. As the temperature goes up, ice cream & Cold Drinks sales also go up.
3. As you drink more coffee, the number of hours you stay awake increases.

Negative Correlation:

A negative correlation means that there exists an inverse relationship between two variables - when one variable decreases, the other increases. The vice versa is also a negative correlation too, in which one variable increases and the other decreases.

Example:

1. If a car decreases speed, travel time to a destination increases or if a car increases speed, travel time to a destination decreases.
2. As one exercises more, his body weight becomes less.

Please let me know for any doubts. Thanks!!