Lab/Quiz #3 Solution Available on The Moodle (was: Re: [CSC 4792] LAB #3 In-Class Quiz (Lecture #04) on August 28 2025)

[Lighton Phiri]

Hello Everyone,

Please note that Lab #3 solutions have been made available on The Moodle [1] under the "Labs/Quizzes" section.

[1] https://moodle.unza.zm/mod/resource/view.php?id=95628

Best wishes,
Lighton

-- 
Lighton Phiri, PhD
Lecturer and Researcher

Telephone: +26 096 1352662
Email: lighto...@unza.zm
DataLab: https://datalab.unza.zm
EMI Project: https://emi.org.zm
UNZA: https://www.unza.zm

University of Zambia
Great East Road Campus 
Lusaka, Zambia 10101
--

On Sat, 23 Aug 2025 at 09:31, Nephas Kango <nephas...@cs.unza.zm> wrote:

On Sat, 23 Aug 2025, 09:10 Lighton Phiri, <lighto...@unza.zm> wrote:

Hello Nephas,

We have exactly three weeks of classes remaining (nine lecture sessions; in fact, eight since September 5 2025 is Sports Day!): we do NOT want to risk not covering CSC 4792 course content. As such, administering CSC 4792 assessments during lecture session slots is not an option.

I have provided an alternative slot which I know could potentially work for all of you: 07H00 on Thursday.

Best wishes,
Lighton

-- 
Lighton Phiri, PhD
Lecturer and Researcher

Telephone: +26 096 1352662
Email: lighto...@unza.zm
DataLab: https://datalab.unza.zm
EMI Project: https://emi.org.zm
UNZA: https://www.unza.zm

University of Zambia
Great East Road Campus 
Lusaka, Zambia 10101
--

On Sat, 23 Aug 2025 at 09:05, Nephas Kango <nephas...@cs.unza.zm> wrote:

I HEARD. But all I'm saying is use the lecture slot we have during the day. Moving at that time some of us are in danger and seeing where most of us stay

On Sat, 23 Aug 2025, 09:00 Lighton Phiri, <lighto...@unza.zm> wrote:

Hello Nephas,

"[...]  More importantly, as mentioned in class, we do not wish to disrupt the lecture slot: it is meant precisely for that."

I am not sure you attend class or have been paying attention to things discussed in class, however, this question you raise has been discussed in class.

Best wishes,
Lighton

-- 
Lighton Phiri, PhD
Lecturer and Researcher

Telephone: +26 096 1352662
Email: lighto...@unza.zm
DataLab: https://datalab.unza.zm
EMI Project: https://emi.org.zm
UNZA: https://www.unza.zm

University of Zambia
Great East Road Campus 
Lusaka, Zambia 10101
--

On Sat, 23 Aug 2025 at 08:54, Nephas Kango <nephas...@cs.unza.zm> wrote:

But you have lecture slots available to you during the day why not those?

On Sat, 23 Aug 2025, 08:51 Lighton Phiri, <lighto...@unza.zm> wrote:

Hello Nephas (and Everyone),

First, because 18H00 is well within the University of Zambia's timeframe for conducting teaching activities.  More importantly, as mentioned in class, we do not wish to disrupt the lecture slot: it is meant precisely for that.

An optional slot for this assessment (and subsequent ones) is 07H00 on Thursday.

Best wishes,
Lighton

-- 
Lighton Phiri, PhD
Lecturer and Researcher

Telephone: +26 096 1352662
Email: lighto...@unza.zm
DataLab: https://datalab.unza.zm
EMI Project: https://emi.org.zm
UNZA: https://www.unza.zm

University of Zambia
Great East Road Campus 
Lusaka, Zambia 10101
--

On Sat, 23 Aug 2025 at 08:33, Nephas Kango <nephas...@cs.unza.zm> wrote:

Hello Sir

Why can't you administer the quiz during your lecture hours not 18hrs. Its getting dangerous where I live.

On Sat, 23 Aug 2025, 07:44 Lighton Phiri, <lighto...@unza.zm> wrote:

[2024/25 CSC 4792] LAB #3: In-Class Quiz (Lecture #04)

Hello Everyone, Please that we have LAB #3 scheduled to be administered as an in-class quiz on August 28 2025 at 18H00 in Micheal Kelly Lecture Theatre located at the School of Education. LAB #3 shall be based on Lecture Series #04. You want to remember that "Labs" account for 10% of the course score. Best wishes, Lighton [2024/25 CSC 4792] LAB #3: In-Class Quiz (Lecture #04) Thursday Aug 28, 2025 ⋅ 18:00 – 18:15 (South Africa Standard Time) Location SLH View map Guests

University of Zambia

Great East Road Campus, Lusaka

www.unza.zm

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CSC 4792: Data Mining and Warehousing
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University of Zambia
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CSC 4792: Data Mining and Warehousing
Department of Computing and Informatics
University of Zambia
P.O. Box 32379, Lusaka 10101, Zambia
Email: csc...@unza.zm
Web: https://groups.google.com/a/unza.zm/g/csc4792
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CSC 4792: Data Mining and Warehousing
Department of Computing and Informatics
University of Zambia
P.O. Box 32379, Lusaka 10101, Zambia
Email: csc...@unza.zm
Web: https://groups.google.com/a/unza.zm/g/csc4792
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CSC 4792: Data Mining and Warehousing
Department of Computing and Informatics
University of Zambia
P.O. Box 32379, Lusaka 10101, Zambia
Email: csc...@unza.zm
Web: https://groups.google.com/a/unza.zm/g/csc4792
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University of Zambia

Great East Road Campus, Lusaka

www.unza.zm

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CSC 4792: Data Mining and Warehousing
Department of Computing and Informatics
University of Zambia
P.O. Box 32379, Lusaka 10101, Zambia
Email: csc...@unza.zm
Web: https://groups.google.com/a/unza.zm/g/csc4792
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CSC 4792: Data Mining and Warehousing
Department of Computing and Informatics
University of Zambia
P.O. Box 32379, Lusaka 10101, Zambia
Email: csc...@unza.zm
Web: https://groups.google.com/a/unza.zm/g/csc4792
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University of Zambia

Great East Road Campus, Lusaka

www.unza.zm

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CSC 4792: Data Mining and Warehousing
Department of Computing and Informatics
University of Zambia
P.O. Box 32379, Lusaka 10101, Zambia
Email: csc...@unza.zm
Web: https://groups.google.com/a/unza.zm/g/csc4792
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CSC 4792: Data Mining and Warehousing
Department of Computing and Informatics
University of Zambia
P.O. Box 32379, Lusaka 10101, Zambia
Email: csc...@unza.zm
Web: https://groups.google.com/a/unza.zm/g/csc4792
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[Jehu Mtine]

Hi Dr Lighton, I hope this finds you well. I approached you earlier because I failed to understand why you didn't give me any points on the first question for lab 3. Or perhaps I didn't understand the question. This is my solution, I had thought that it would be possible that the estimators/algorithms could understand the column "SurveyHomeTownSurburb" if I hot encoded it using sklearn's OneHotEncoder and put that into a dataframe. I was referencing what you had done in the notebook for lecture 4. Attached is the screenshot for the notebook and my answer on the lab/quiz. Please advise. Thank you