Understanding Standard deviation and other measures of spread in statistics

Dr Nic explains the three measures of spread, range, inter-quartile range and standard deviation. This is part of a series of videos for introductory statistics. It uses real data collected from students about the number of pairs of shoes they own.

[missbhavana]

Thank you for a wonderfully clear explanation. When would we use IQR vs. standard deviation to measure variation? Are there pros and cons to using each? And what is the value of knowing that there is more variation in women's shoes than in men's shoes? How can we use that insight?

[elangovanr]

Hi DrNick, thanks for the simple explanation, I have some clarification regarding the spread. In the inter-quartile-range do we have to take 1/4 of the data to find the range ?. Please explain it in more simple definition.

[pammorrissey]

Hi Dr Nic, thanks for another great video. I've just watched the one on confidence intervals and now I'm a little confused. What is the difference between standard deviation and confidence intervals? When and why would we use each of these?

[iminurshed]

Is there a way to calculate the standard deviation?

[shanmugavelayutham]

How to calculate inter quartile range ? And please explain about box plot how to view ?what it shows.

[brijeshtivari]

How to find outliers and confidence interval?

[ezhilarasankandaswamin]

Can suggest good book. To follow your vedio one by one.
It will help us future understanding

[TheAgentSmitheffect]

Got me on YouTube trynna figure this out n shit

[lokeshn]

Be little slow while explaining the concepts, ur rushing up ..