(ML 11.1) Estimators

Definition of an estimator. Examples of estimators. Definition of an unbiased estimator.

[@plttji2615]

Thank you for the video, can you help me how to prove that is unbiased in this question? Question: Compare the average height of employees in Google with the average height in the United States, do you think it is an unbiased estimate? If not, how to prove it is not mathced?

[@sediye]

incredible, love it. it helpd me so much

[@believeinit44]

A statistic is a function of some items in a sample (ie a statistic relates to the sample while a parameter relates to the population)

[@antz3713]

why can't professors teach like this instead of flying through shit you aint even know whats going on and gotta learn this shit online and shit

[@celinebrown2091]

+Anthony V init

[@osharaki]

Thanks for the great video! At 04:50 you mention that mu hat is a random variable that is a function of the Xis, which would make it a statistic per your first definition. However, just after that you call it an estimator of the mean. Would be great if someone can clarify.

[@alane1004]

Much appreciated....you have a talent for explaining. Thank you for making these!

[@OctoTrout]

Thank you, but the end is kinda useless to those of us seeking supplementary examples (of which KZbin is suffering a dearth) without further explanation.

[@fatsquirrel75]

Well said Octo Trout. I don't come to KZbin to do examples myself. I want to see how things are done.

[@shotpana]

I'm struggling with the last two he left as an exercise. :(

[@thatipelli1]

Thanks for this simple explanation.

[@OpenTheTrollGate]

good video, bu no practical problems

[@willeett]

What is iid then??

[@willeett]

willeett Independent identically distributed observations (iid).

[@stuff12hey1]

iid is very very useful

[@tomasoveneroso]

do you offer private online tutoring session. I am a part time grad student in stats and i feel that your videos are very enlighting

[@ruthvikchandra4715]

tomaso veneroso Woh.. 6 years back you commented

[@TTI]

Thanks for this really helpful video :)

[@almansteuerneintreiben1822]

The volume is a bit too low.

[@Flowerlifts111]

o mg so good

[@dhiruiitk]

thank you