Welcome to ExamTopics
ExamTopics Logo
- Expert Verified, Online, Free.
Location Chicago IL, USA

Exam A00-240 topic 1 question 48 discussion

Actual exam question from SAS Institute's A00-240
Question #: 48
Topic #: 1
[All A00-240 Questions]

A linear model has the following characteristics:
*A dependent variable (y)
*One continuous variable (xl), including a quadratic term (x12)
*One categorical (d with 3 levels) predictor variable and an interaction term (d by x1)
How many parameters, including the intercept, are associated with this model?
Enter your numeric answer in the space below. Do not add leading or trailing spaces to your answer.

Show Suggested Answer Hide Answer

Suggested Answer: 7


4 months ago
please explain how it is 7
upvoted 1 times
2 months, 3 weeks ago
these are the predictors: [x1 , x1^2, b2, b3, x1*b2, x1*b3 , 1] 7 columns, 7 coefficients
upvoted 1 times