Each of the following possible selection is a pair of things that are either positively correlated, negatively correlated, or uncorrelated. For example, hot days and ice cream sales on those flays are positively correlated. Select all pairs of things that are positively correlated. Hot days and ice cream sales on those days A company's stock price and its market cap (assuming the number of shares outstanding is fixed) Two stocks in a well-diversified portfolio How long your hair is, and the temperature in Wuxi, China The number of absences you have in a class, and your grade Risk and return Dividend yield and stock price The speed you drive your car from point
A
to point
B
, and the time it takes you to get there

Correlation, a statistical metric, expresses how linearly tightly two variables are associated (meaning they change together at a constant rate). It's a common strategy for presenting clear relationships without mentioning cause and effect clearly. How closely two variables are related to one another in a single figure can be determined using the correlation coefficient. Correlation analysis makes it easier to understand economic behavior and identify the key variables that other factors depend on. he connection between two elements is positive (population and income). Things that are negatively correlated (amount of income earned and amount of income tax paid). Because taxes are always paid more when income or earnings are higher, earned income and tax payments are an example of two elements that are adversely related.

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