'Logistic regression' vs. 'multiple linear regression' - Is the answer in the exam preparedness test wrong?

Bartlomiej Jesionkiewicz 30 Reputation points
2024-07-08T20:00:56.68+00:00

Hi,

I answered the 50 questions that test one's readiness to take the exam for the Azure AI Fundamentals AI-900 certification.

I think that the answer to one question is wrong.

In the answers, one can find the explanation that 'multiple linear regression models a relationship between two or more features and a single label'. The question which machine learning model should be chosen relates to establishing the relation between body fat, age and the risk of diabetes. Thus, there are two features and one label. Consequently, 'multiple linear regression' seems to be to be the correct answer to me.

Yet, this answer is marked as wrong and 'logistic regression' is marked as correct (see screenshot).

Potentially-Wrong-Answer_Practice Assessment for Exam AI-900_Microsoft Azure AI Fundamentals_39-of-50

Am I right assuming that this is an error and that 'multiple linear regression' should be marked as the correct answer?

If yes, I would like to know before I take the exam. Moreover, I would suggest to correct the exam preparedness test accordingly.

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  1. Marcin Policht 23,700 Reputation points MVP
    2024-07-08T21:56:29.4766667+00:00

    yep - agreed. As a matter of fact, there is almost identical example at https://learn.microsoft.com/ms-my/training/modules/understand-regression-machine-learning/4-multiple-linear-regression

    It's worth noting thought that rather than modeling a single relationship, this technique simultaneously models multiple relationships, which it treats as independent of one another. This nuance seems to be missing from the question.


    If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

    hth

    Marcin

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  1. YutongTie-MSFT 51,696 Reputation points
    2024-07-09T01:28:56.96+00:00

    Thanks for reaching out to us, I am sorry to see this confused information, but I would like you to post the question to the right forum so that you can double check with the exam prep team.

    The right forum are below -

    Microsoft Learning https://techcommunity.microsoft.com/t5/microsoft-learn/ct-p/MicrosoftLearn

    Microsoft Exams - Exam Prep Resources https://trainingsupport.microsoft.com/en-us/mcp/forum/mcp_exams-mcp_prep

    I hope this helps!

    Regards,

    Yutong

    -Please kindly accept the answer if you feel helpful to support the community, thanks a lot.

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