Practice Interpreting The Model (6.6) - Chapter 6: Supervised Learning – Linear Regression

Practice: Interpreting the Model

Lesson 6.6Supervised Learning – Linear Regression

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9 questions

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2 cards from this section. Quick, good the night before a test.
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6 sample questions

Question 1.
What does the slope represent in a linear regression model?
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Think about how changes in experience affect salary.
Question 2.
What is the intercept in a regression equation?
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Consider salary when experience is zero.
3Question 3.
What does a slope of 6250 represent in the context of salary prediction?
- A $6250 starting salary
- A $6250 increase for each year of experience
- A fixed salary irrespective of experience
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Think about how salary varies with experience.
4Question 4.
True or False: The intercept represents the change in salary with each year of experience.
- True
- False
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Recall the definition of intercept.
Question 5.
A model indicates that the slope is 5000 and the intercept is 23000. Predict salaries for a person with 0, 3, and 10 years of experience. Discuss your findings.
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Use the salary equation for the calculations.
Question 6.
If the slope were to change from 5000 to 7000, how would that affect the salary prediction for someone with 5 years of experience?
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Calculate the new predicted salary using the changed slope.

5 more questions in this section. Enroll free to practise them all.