Lecture 3.3 - Describing Numerical Data - Median and Mode

[@efficaciousuave]

Microsoft Surface Spotted:::: Surface Fan here...🤩🤩🤩

[@AkashKumar-sk4cp]

0:13 Median Definition 0:57 Steps to obtain median (for ungrouped Numerical dataset) 3:07 Ex-3.3.1, 3.3.2, 3.3.3 • Median is not that sensitive to outliers as mean. The sample mean is sensitive to outliers, whereas the sample median is not sensitive to outliers. • Median may not belong to the dataset. Median doesn't necessarily belong to the dataset especially when the dataset has even size. 9:07 Adding a Constant to the Median

[@ramworld8916]

summary always better ...

[@ajaykumar800]

very nicely explained.

[@iitmadrasgraded]

So nicely explained.

[@kartiksaxena4]

15:04 ; what if all the values have the same frequency say 3, will there be no mode of such data set?

[@everythingra8039]

If all values have the same frequency then the mode is that value because it is the most frequently occuring value irrespective of whether it is the only value in the dataset or not. Hope you get it. Btw, I'm documenting my preparation journey of IITM BSc Degree, my competitive programming journey, and learning stuff related to DS & AI ML through the channel "EverythingRA" .. Please do have look at it, and if you think it can help you in anyway please like, subscribe and share my channel. Thanks.

[@yeshwanthmuthyala3343]

answered in Next lecture 3.4

[@sohan7249]

There will be multimodal

[@dulichand2435]

can a data set have 2 or more mode eg: 3,2,2,8,7,5,6,6,9 here mode will be 2 & 6 - is it true? (anyone tell me)

[@prashantkumarsingh6256]

yes set of numbers with more than one mode is called multimodal

[@YOVINES]

@@prashantkumarsingh6256 bimodal to be very precise for two modes

[@sanyathak8584]

Yes there can be... It's not said that mode can only be one ... There can be multiple modes for given data..

[@sayantan9800]

Yeah....then it is called bimodal....

[@AyeshaZubia-yb1rz]

11:51

[@Memer.mata01]

Please improve the sound