Grade 12 Mathematical Literacy - Quartiles

[@TeacherPaineSA]

My apologies. The IQR at 4:29 should be 7 and not 8.
Thank you to an eagle-eyed viewer for catching that!

[@kieratucker9766]

Very helpful . I couldn’t grasp this concept before thank you

[@TeacherPaineSA]

Glad it's helpful.

[@sdzamo5194]

Can you also include percentiles?

[@nathisehlangu1060]

Example 2 for Q1 is it not 3 as 3 is exactly in the middle?

[@TeacherPaineSA]

No, you need to include the 5 that is before the median (Q2) in your count so there are 6 numbers in the lower 50%.
Remember that the median lies between two numbers here.

[@noluthandontuli1423]

Could you please explain more on calculating quartiles for grouped data

[@olivenyirarukundo8]

Thanks 👍,we helped me to know these lessons

[@mihlalimahijana427]

This helped me a lot. thank you sir.👍

[@MimiDlaku]

Will the interquartile not be 7?

[@TeacherPaineSA]

My apologies! Yes you are correct.
The IQR is 7.

[@Kgoitsi.M]

You’re amazing sir

[@matlhogonolovalencia4671]

The teacher took out Q2 which is median so the answer for Q2 I s correct am matlhogonolo from Mampho secondary school thank you

[@ashlenemcguire8885]

Thank you it was so helpful

[@TeacherPaineSA]

Glad it helped!

[@kayrofredericks921]

❤️❤️❤️

[@Ken-py4xc]

This was so helpful, I didn’t understand this before, THANK YOU!!🤍

[@TeacherPaineSA]

My pleasure.