2023 G12 internal maths question 12 paper 2 - Standard deviation and relative cumulative frequency

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4 ай бұрын

Are you ready to tackle 2023 G12 Maths Internal Question 12 Paper 2 on Standard Deviation and Relative Cumulative Frequency? Join us in this stimulating breakdown that will enhance your understanding of these vital concepts. Unlock the secrets to mastering these advanced mathematical principles with ease. Delve deep into the specifics of Standard Deviation and Relative Cumulative Frequency as we walk you through step by step. Prepare to up your mathematical game and soar to new heights academically. Don't miss this crucial tutorial on 2023 G12 Maths Internal Question 12 Paper 2 - Standard Deviation and Relative Cumulative Frequency!
Get ready to ace your 2023 G12 Maths Internal Maths Question 12 Paper 2 on standard deviation and relative cumulative frequency with this comprehensive video tutorial! Dive deep into the complex world of statistics as we break down key concepts and strategies to help you excel in your exams. Master techniques, calculations, and real-world applications, ensuring you're fully prepared for any challenge that comes your way. Don't miss out on this invaluable resource to boost your understanding and confidence in mathematics. Watch now to level up your math skills and conquer Question 12 Paper 2 like a pro!
Get ready to master 2023 G12 Maths Internal Maths Question 12 P2 in this insightful video focusing on standard deviation and relative cumulative frequency calculations. This analysis will sharpen your maths skills and boost your understanding of key concepts. Dive deep into the world of statistics as we break down complex problems and guide you through the step-by-step process. Whether you're a student preparing for exams or a math enthusiast looking to enhance your knowledge, this video is perfect for you. Watch now to unlock the secrets behind 2023 G12 Maths Internal Maths Question 12 P2 - Standard Deviation and Relative Cumulative Frequency.
Get ready to ace the 2023 G12 Maths Internal Question 12 P2 as we delve into the tricky realm of Standard Deviation and Relative Cumulative Frequency. In this detailed video walkthrough, we tackle key concepts, formulas, and step-by-step solutions to sharpen your math skills. Whether you're a student gearing up for exams or a math enthusiast seeking deeper knowledge, this tutorial has you covered. Don't miss out on valuable insights and strategies to tackle this challenging problem with confidence. Watch now and elevate your math abilities to the next level! #maths #InternalMathsQuestion #StandardDeviation #CumulativeFrequency

Пікірлер: 124

@GSCEMathematicsZone12 29 күн бұрын

Also, watch how to find the Semi Interquartile Range here: kzfaq.info/get/bejne/jLGGi9N13pnQlps.htmlsi=2BasJGrmwyIQHUv7

@user-pf5kf5ke5t 26 күн бұрын

Well explained thank u sir

@GSCEMathematicsZone12 26 күн бұрын

Thank you very much 🙏

@ChristopherKapitolo 3 ай бұрын

Thank you sir this more interested

@GSCEMathematicsZone12 3 ай бұрын

More to come! You can also watch 2022 paper 2 cubic functions, remember to leave a comment, like and share here: kzfaq.info/get/bejne/r5ylgc6Z0ayUqJc.htmlsi=HxN4O-Pt_pVZEFEu

@user-ls6xu8lf4c 2 ай бұрын

Exellent work❤

@GSCEMathematicsZone12 2 ай бұрын

Thank you very much for the positive feedback. Please watch more Maths videos on this channel and remember to like, comment and share 😊

@TayanaChirwa 2 ай бұрын

Thanks sir

@GSCEMathematicsZone12 2 ай бұрын

You are welcome. Kindly watch more videos on this channel and remember to like, comment and share.

@zwaumukanda 3 ай бұрын

wow very detailed sir am grateful ❤

@GSCEMathematicsZone12 3 ай бұрын

My pleasure. Look out for Linear Programming (2023 Internal maths exam) comingoutsoon. In the meantime, watch how to calculate the standard deviation of ungrounded data here: kzfaq.info/get/bejne/bJ-DprZ6tbqcqaM.htmlsi=hdNDgJiERml0bPFE Remember to like, comment and share.

@julietsakala4430 4 ай бұрын

Thank you sir, this is very helpful.

@GSCEMathematicsZone12 4 ай бұрын

We are glad to help 😀

@user-pe9eo6wp5b 4 ай бұрын

Thank you sir, you are really helping me

@GSCEMathematicsZone12 4 ай бұрын

I'm glad to help. Thank you very for watching, kindly share the video to more people. 🙏

@KiidiMukonka 2 ай бұрын

yeah this has opened my mind🙏

@GSCEMathematicsZone12 2 ай бұрын

That's really nice to hear. Watch more videos on this channel and learn more. Remember to like, comment, and share.

@ArnoldZimba 2 күн бұрын

Wow , u have helped me ❤

@KayomboKayombo-zj8sj 7 күн бұрын

Thank you very much for making me to understand this topic

@GSCEMathematicsZone12 7 күн бұрын

You are welcome, keep watching.

@TracyKaila Ай бұрын

Thank you so very much 😊you have really helped me

@GSCEMathematicsZone12 Ай бұрын

I'm glad I could help! Keep watching more videos on this channel, and remember to like, comment, and share.

@hellenhambulo8827 3 ай бұрын

You made it so easy 😊thank you sir ...

@GSCEMathematicsZone12 3 ай бұрын

Thank you very much for your positive feedback. I'm glad you're enjoying. Kindly watch also the "2023 G12 Linear Programming video, " by clicking on the link below. Remember to leave a comment, like and share. kzfaq.info/get/bejne/o5qhfbR7yZrUcn0.html

@GiftMbao Ай бұрын

Thank you very much sir❤❤ God bless you

@GSCEMathematicsZone12 Ай бұрын

Thank you. Keep watching more videos on this channel, and remember to like, comment, and share.

@masilisomuhongo-id4ro 2 ай бұрын

Very helpful sir

@GSCEMathematicsZone12 2 ай бұрын

Thank you very much. Kindly watch more videos from this channel and remember to like, comment and share.

@user-nk5po8xt7r 3 ай бұрын

Thank you sir it's clear ❤

@GSCEMathematicsZone12 3 ай бұрын

Thank you very much for your positive feedback. Kindly watch also the "Linear programming video, " by clicking on the link below and don't forget to like, comment and share. kzfaq.info/get/bejne/o5qhfbR7yZrUcn0.htmlsi=evhjL5bAORXRMlXl

@user-nk5po8xt7r 3 ай бұрын

@@GSCEMathematicsZone12 thanks I will watch it as well your teaching is clear sir 🙏

@GSCEMathematicsZone12 3 ай бұрын

@user-nk5po8xt7r thank you very much.

@BoydMunonka-ky7yl 2 ай бұрын

Exellent explaination sir

@GSCEMathematicsZone12 2 ай бұрын

Thank you very much. I'm glad you are enjoying our videos. Kindly watch more and remember to like, comment and share!

@micahsandu6602 Ай бұрын

Thank you sir God bless you

@GSCEMathematicsZone12 Ай бұрын

Thank you very much. Keep watching more videos on this channel and remember to like, comment and share.

@Robert22Banda 3 ай бұрын

Thank you sir for help me

@GSCEMathematicsZone12 3 ай бұрын

You are welcome, you can also watch 2022 cubic functions and don't forget to leave a comment, like and share here; kzfaq.info/get/bejne/r5ylgc6Z0ayUqJc.htmlsi=yDbeXcC6MW2mN9pA

@evansmusonda2729 3 ай бұрын

Thank you sir

@GSCEMathematicsZone12 3 ай бұрын

You are welcome. Kindly also watch the 2023 Linear programming video by clicking on the link below. Remember to like, comment and share. kzfaq.info/get/bejne/o5qhfbR7yZrUcn0.html

@paulpain-jz1qv 3 ай бұрын

Great work 💯👏

@GSCEMathematicsZone12 3 ай бұрын

Thank you very much for your positive feedback.

@SarahNakiberu 16 күн бұрын

Thanks again

@GSCEMathematicsZone12 16 күн бұрын

You're welcome.

@ConstanceKumwenda-zt1bv Ай бұрын

Thanks

@GSCEMathematicsZone12 Ай бұрын

You're welcome

@blackfordbanda6553 5 күн бұрын

Sweet leaning ❤❤

@GSCEMathematicsZone12 5 күн бұрын

I'm glad you enjoyed 😉

@PaulMwale-c3b Ай бұрын

Great job Sir

@GSCEMathematicsZone12 Ай бұрын

Thank you much 🙏

@MainzaChimuka Ай бұрын

You're blessed sir🤗❤❤

@GSCEMathematicsZone12 Ай бұрын

Thank you very much. Please keep watching more videos on this channel and remember to like, comment and share.

@SilviaSamba-fr7wn 2 ай бұрын

Am enjoying you sir

@GSCEMathematicsZone12 2 ай бұрын

I'm glad you are enjoying. Please watch more of our videos and don't forget to like, comment and share 😊

@RebeccaMukuka Ай бұрын

Excellent ❤❤❤❤

@GSCEMathematicsZone12 Ай бұрын

Thanks. Keep watching more videos on this channel and remember to like, comment, and share.

@Monica-ly2jp 2 ай бұрын

❤❤ u are the best teacher 💯

@GSCEMathematicsZone12 2 ай бұрын

Thank you very much for your kind words. Please watch more videos on this channel and remember to like, comment and share.

@MakandoMakuya 20 күн бұрын

Well explained sir

@GSCEMathematicsZone12 20 күн бұрын

Thank you very much. Keep watching more videos on this channel, and remember to like, comment, and share.

@TanyaradzwaMatengarufu 2 ай бұрын

Can I do it without calculate is it possible here

@GSCEMathematicsZone12 2 ай бұрын

Yes, very much possible. I recommended a calculator because calculators are allowed in paper 2 and also you may save some time. Remember, you also wrestle with time In an exam.

@FranciscaLiisa 2 ай бұрын

❤❤❤❤U are the best teacher

@GSCEMathematicsZone12 2 ай бұрын

Thank you very much for your kind words. Please watch more of our videos and remember to like, comment and share 😊

@user-bw7vh9uw6s 3 ай бұрын

What if you round-off the mean from 28.666666667 to 29 is that also correct?

@GSCEMathematicsZone12 3 ай бұрын

It was going to be correct if the main question was asking us to find the mean and you would have written it correct to 3 significant figures as 29.0. But since we are using the mean as the road to the standard deviation, avoid such rounding, you can at least round it correct to 3 significant figures as 28.7 or just write the full number to avoidmistakes. Imagine if you keep rounding and shortening your answers in each step before you get to the Standard Deviation, it means that your final answer, which is the standard deviation may be highly affected. So, to avoid that, write the numbers in full or round them correct to 3 significant figures.

@user-bw7vh9uw6s 3 ай бұрын

@@GSCEMathematicsZone12 Alright thank you 🙏

@GSCEMathematicsZone12 3 ай бұрын

Always welcome. Kindly watch more videos on this channel.

@Majory-dv1xc 27 күн бұрын

Mmmm ala ba sir mwasova thanks 🙏🙏🙏

@GSCEMathematicsZone12 26 күн бұрын

Natasha. Twalilileni ukutamba ama videos from this channel.

@CyrusBanda Ай бұрын

Thank you sir but Why don't we also divide by the sum of frequency?

@GSCEMathematicsZone12 Ай бұрын

I actually divided by the sum of frequency, 30 is the sum of frequencies. Even if you add all the total frequency from the table, you will still find 30 as the total frequency.

@FebbyMusando 3 ай бұрын

Were do you find 2+6+9+7+4

@GSCEMathematicsZone12 3 ай бұрын

They are the frequencies from the table.

@GraceNalwimba 27 күн бұрын

May God bless you sir

@GSCEMathematicsZone12 26 күн бұрын

Amen and Amen.

@PaulMwale-c3b Ай бұрын

May go bless you

@GSCEMathematicsZone12 Ай бұрын

Thank you very much 🙏

@DonayanaEliya 2 ай бұрын

Nice

@GSCEMathematicsZone12 2 ай бұрын

Thanks, keep watching more videos on this channel and remember to like, comment and share.

@tembaminyoi2253 19 күн бұрын

Sir how can I use this same formula when finding for grouped data

@GSCEMathematicsZone12 19 күн бұрын

The process is the same. You can use this process and formula for both groupped and ungrounded data.

@tembaminyoi2253 19 күн бұрын

@@GSCEMathematicsZone12 thank u very much sir God bless u and am kindly asking if u can teach me transformation

@GSCEMathematicsZone12 19 күн бұрын

You are welcome. Sure, expect a video on transformation, one of these weekends.

@TeddySilungwe 2 ай бұрын

Why not dividing ef

@GSCEMathematicsZone12 2 ай бұрын

Thanks for your message. What do you mean by ef?

@LenardTembo-xl4zi 3 ай бұрын

Why are you not including 7

@GSCEMathematicsZone12 3 ай бұрын

You mean the 7 at the far end of 28.6666667? During exams, mostly you are told to give your answers to 3 significant figures if the degree of accuracy is not specified. So, the 7 was omitted because whether the 7 is included or not, the final answer can still be written to 3 significant figures. Meaning whether the 7 is there or not, you can still round that number to 28.7 (3 significant figures). Hope this helps.

@LenardTembo-xl4zi 3 ай бұрын

@@GSCEMathematicsZone12 alright thanks sir

@GSCEMathematicsZone12 3 ай бұрын

@LenardTembo-xl4zi You are welcome, you can also watch how to calculate the standard deviation of ungrounded data using 2018 GCE Maths Paper 2 here: kzfaq.info/get/bejne/bJ-DprZ6tbqcqaM.htmlsi=j_Vk-FKXWtRBUaIJ, remember to like, comment and share.

@DaisyMbunda 2 ай бұрын

What is that 991.9

@ConstanceKatabanya 2 ай бұрын

Do we always divide by 2

@GSCEMathematicsZone12 2 ай бұрын

Yes, for groupped data (data in ranges or class intervals) like the one in the question, you will always have to add the lower and upper class interval and then divide by 2, for you to find the midpoint.

@BridgetBen-wj4pu Ай бұрын

Thanks so very much sir but my teacher included the 30 nd divided it

@GSCEMathematicsZone12 Ай бұрын

You are welcome. I used 30 when I used Σf.

@ClementMurphy-w2j 12 күн бұрын

You should also teach mensuration sir

@GSCEMathematicsZone12 12 күн бұрын

Noted, thank you.

@GladysMwenya-fh6qo 2 ай бұрын

Sir why are you not including 7

@GSCEMathematicsZone12 2 ай бұрын

@user-mt5ph3wr3w 3 ай бұрын

Sir why are you dividing only with 2

@GSCEMathematicsZone12 3 ай бұрын

Thank you for your message. We are dividing by 2 because that's how you find the midpoint of groupped data, data that is in a range. For example, the midpoint of the class range 0 < h < 4 is (0 + 4) ÷ 2 = 4÷2 = 2, also for 5 < h < 8 is (5 + 8) ÷ 2 13÷2 = 6.5 and so on. So, this is how you calculate the midnight of every groupped data by adding the lower limit and the upper limit and then dividing by 2. Hope this is clear now.

@user-pf5kf5ke5t 26 күн бұрын

Sets past papers gce

@GSCEMathematicsZone12 26 күн бұрын

Noted ✅️

@user-pl1dw2zl6v 25 күн бұрын

But why 7 it is not included?

@GSCEMathematicsZone12 24 күн бұрын

Whether you include it or not, the final answer is going to be the same.

@FelixKapembeza 2 ай бұрын

Sir Is 0

@GSCEMathematicsZone12 2 ай бұрын

No, they are different. The first class limit shows that 0 is not included while the second one 0 is included.

@FelixKapembeza 2 ай бұрын

@@GSCEMathematicsZone12 thank you sir so does that mean even their midpoints differ?

@FelixKapembeza 2 ай бұрын

Thank you sir,so does that mean even their midpoints differ?

@GSCEMathematicsZone12 2 ай бұрын

@FelixKapembeza you are welcome. The midpoints remain the same. They Don't differ. You can only show the difference if it was an inequality.

@FelixKapembeza 2 ай бұрын

@@GSCEMathematicsZone12 thank you sir I really appreciate you

@PhilimonSanazhi Ай бұрын

🎉❤

@GSCEMathematicsZone12 Ай бұрын

😍😍

@MercySachiyoya Ай бұрын

I have seen you

@GSCEMathematicsZone12 Ай бұрын

I'm very glad that our channel is providing help to you. We wish you all the best and keep learning from our channel.

@ConstanceKumwenda-zt1bv Ай бұрын

Thanks sir

@GSCEMathematicsZone12 Ай бұрын

You are welcome. Keep watching more videos on this channel and remember to like, comment and share.

@musakasimon Ай бұрын

Sir why are you not including 7

@GSCEMathematicsZone12 Ай бұрын

Because whether you include it or not, the answer will be the same.

@musakasimon Ай бұрын

Why are you not including 7

@GSCEMathematicsZone12 Ай бұрын

Because whether you include it or not, the answer will be the same.

@FelixKapembeza 2 ай бұрын

Sir Is 0

@GSCEMathematicsZone12 2 ай бұрын

No, it doesn't.