## anonymous 3 years ago Can anyone tell me whether following things are true or not

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1. poopsiedoodle

False.

2. anonymous

true

3. anonymous

Where E stands for expectation$E { [E(\theta)]^2 } = (E(\theta))^2$

4. anonymous

Both.

5. AravindG

please allow him to post his question :/

6. anonymous

the uqestion is in the comment @maddie0603 @unheard @poopsiedoodle @AravindG

7. anonymous

i know i was messing around with u

8. poopsiedoodle

same. I dunno this stuff :p

9. anonymous

it is the expectation of expectation of theta whole square

10. AravindG

guys check this out http://openstudy.com/code-of-conduct

11. anonymous

@Sean_Anderson you had your fun now buzzout I am in no mood for silly jokes

12. AravindG

@ipm1988 expectation in what terms ..I really dont seem to understand your notation ..Which chapter does this come under?

13. anonymous

@AravindG point estimation

14. AravindG

sorry statistics isnt my area

15. anonymous

@maddie0603 do you have any idea

16. anonymous

nope

17. anonymous

if X is a random variable, then E[X] is a number independent of x, let me call it c, then E[E[X]]=E[c]=c, so E[E[X]]^2=c^2=(E[X])^2.

18. anonymous

Fyi, when you encounter E[X|Y] where X and Y are rvs, which is called conditional expectation, then E[X\Y] is a rv itself. :)

19. anonymous

i agree with both, people can some times it depends on what they choose on, so it makes it true and false lolz

20. anonymous

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