DATABRICKS-CERTIFIED-PROFESSIONAL-DATA-SCIENTIST · Question #97
Which method is used to solve for coefficients bO, b1, ... bn in your linear regression model:
The correct answer is C. Ordinary Least squares. RY = b0 + b1x1+b2x2+ .... +bnxn In the linear model, the bi's represent the unknown p parameters. The estimates for these unknown parameters are chosen so that, on average, the model provides a reasonable estimate of a person's income based on age and education. In other words…
Question
Which method is used to solve for coefficients bO, b1, ... bn in your linear regression model:
Options
- AApriori Algorithm
- BRidge and Lasso
- COrdinary Least squares
- DInteger programming
How the community answered
(28 responses)- A11% (3)
- B4% (1)
- C71% (20)
- D14% (4)
Explanation
RY = b0 + b1x1+b2x2+ .... +bnxn In the linear model, the bi's represent the unknown p parameters. The estimates for these unknown parameters are chosen so that, on average, the model provides a reasonable estimate of a person's income based on age and education. In other words, the fitted model should minimize the overall error between the linear model and the actual observations. Ordinary Least Squares (OLS) is a common technique to estimate the parameters
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