SAS A00-240 Exam - Topic 8 Question 129 Discussion

Actual exam question for SAS's A00-240 exam

Question #: 129
Topic #: 8

[All A00-240 Questions]

A linear model has the following characteristics:

* A dependent variable (y)

* One continuous variable (x1)

* One categorical (1 with 3 levels) predictor variable and an interaction term (1 by x1)

How many parameters, including the intercept, will be estimated for this model?

Enter your numeric answer in the space below.

Show Suggested Answer

Suggested Answer: A

by Inocencia at Jun 26, 2026, 04:29 PM

Limited Time Offer

25%

Off

Get Premium A00-240 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Brandon

3 days ago

I was confused at first, but it makes sense now.

upvoted 0 times

...

Reid

9 days ago

I counted too, it adds up to 7.

upvoted 0 times

...

Iluminada

14 days ago

Sounds right!

upvoted 0 times

...

Tiera

19 days ago

We have 1 intercept, 1 for x1, 3 for the categorical levels, and 2 for the interaction.

upvoted 0 times

...

Rolf

24 days ago

Why 7?

upvoted 0 times

...

Tiera

29 days ago

I think it's 7.

upvoted 0 times

...

Cammy

1 month ago

1 intercept + 1 continuous + 3 categorical + 2 interaction = 7.

upvoted 0 times

...

Derick

1 month ago

I thought it would be more than 7 with the interaction term.

upvoted 0 times

...

Dexter

1 month ago

Wait, are we sure about that? Seems off.

upvoted 0 times

...

Nieves

2 months ago

Totally agree, it adds up to 7!

upvoted 0 times

...

Jacqueline

2 months ago

There are 7 parameters total.

upvoted 0 times

...

Alica

2 months ago

I practiced a similar question where we had to count parameters, and I think it was about 6 or 7 total, including the interaction.

upvoted 0 times

...

Daniel

2 months ago

If I recall correctly, the categorical variable has 3 levels, so we might need to subtract one for the reference level, right?

upvoted 0 times

...

Nicolette

2 months ago

I'm not entirely sure, but I remember something about interaction terms adding complexity. Does that mean we add more parameters?

upvoted 0 times

...

Shalon

3 months ago

I think we have to count the intercept plus the number of levels in the categorical variable and the continuous variable.

upvoted 0 times

...