stat assignment please

 write step by step please.

hello there, who can help me in STAT assignment?

For $10 ?

I have three question and I need the solution as soon as possible

First question is http://im34.gulfup.com/YNPk8.png ,

second question is http://im34.gulfup.com/3PSkM.png

and third question is http://im34.gulfup.com/1Q0sm.png ????

 

 

 

 
 
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