Line Of Best Fit

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Dictionary Says

Definition of 'Line Of Best Fit'

A straight line drawn through the center of a group of data points plotted on a scatter plot. Scatter plots depict the results of gathering data on two variables; the line of best fit shows whether these two variables appear to be correlated.

A more precise method for determining the line of best fit is a mathematical calculation called the least squares method. The line of best fit is used in regression analysis, and is a key input in statistical calculations such as the sum of squares. It can also be used as a tool for analyzing investment risk or trading activity.
Investopedia Says

Investopedia explains 'Line Of Best Fit'

The line of best fit is a common but simplistic tool for showing how two variables may be related. Examples of types of variables whose correlation (or lack thereof) could be shown with a scatter plot and line of best fit include the number of months someone has been unemployed and the size of their emergency fund, the number of years of education completed and annual salary or mortgage interest rates and the number of home sales.
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'Line Of Best Fit'

  • Regression Basics For Business Analysis

    http://www.investopedia.com/articles/financial-theory/09/regression-analysis-basics-business.asp
    ... line results in the regression equation. Figure 1: Line of best fit. Source:
    Investopedia, 2009. Excel Now that you understand some ...

  • Measuring And Managing Investment Risk

    http://www.investopedia.com/articles/08/risk.asp
    ... Drawing a line of best fit through the data points allows us to quantify the passive,
    or beta, risk and the active risk, which we refer to as alpha. ...

  • Find The Right Fit With Probability Distributions

    http://www.investopedia.com/articles/06/probabilitydistribution.asp
    ... probability of about 16.67% (1/6). Our plot below shows the solid line (so you ... many
    shoes in our statistical shoe closet, we try to choose the best fit for the ...

  • Best Credit Cards For Holiday Shopping - Investopedia.com

    http://financialedge.investopedia.com/financial-edge/1211/Best-Credit-Cards-For-Holiday-Shopping.aspx
    ... These cards are not a good fit for those with average or ... credit, or those that will
    need the best possible credit ... hit when you open a new loan or line of credit ...

  • When Is A Bull Market Not A Bull Market?

    http://www.investopedia.com/articles/bonds/10/when-a-bull-is-not-a-bull.asp
    ... lines are not a common tool for many traders, but they can be a valuable tool for
    seeing where the majority of price action or the "line of best fit" is taking ...

  • Find Your Niche In The Financial Industry

    http://www.investopedia.com/articles/financialcareers/07/analystbrokercareer.asp
    ... job as a registered representative might be a good fit. ... degree in business
    administration is the best course ... from his or her initial career path down the line. ...

  • The Big Mac Index and Currency ETFs

    http://stocks.investopedia.com/stock-analysis/moneyshow/TheBigMacIndexandCurrencyETFs.aspx
    ... The Economist likes to “Estimate the current fair value of a currency (using) the
    “line of best fit” between Big Mac prices and GDP per person.” This ...

  • Market Reversals And How To Spot Them

    http://www.investopedia.com/articles/technical/04/031004.asp
    ... of the number of both inside and outside bars that are the best fit with the ... that
    the trend has changed and will be followed shortly after by a trend line break ...

  • An Old Line Mix Of Dividends

    http://stocks.investopedia.com/stock-analysis/2009/An-Old-Line-Mix-Of-Dividends-ED-CTL-PBI0722.aspx
    ... old line' businesses are very often the ones that pay out the best dividends and
    trade with the securest fundamentals. Here are a number that currently fit the ...

  • A 529 Plan Fit For An Ivy League Education

    http://www.investopedia.com/articles/pf/09/independent-529-college-savings-plan.asp
    A 529 Plan Fit For An Ivy League Education. ... what you're getting into before signing
    on the dotted line. ... The best investment result is 2% per year and the worst ...

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