20 x 1000360050970 x ...
8
Transcript of 20 x 1000360050970 x ...
Joe
Typewriter
20 x 1000
Joe
Typewriter
3600
Joe
Typewriter
50
Joe
Typewriter
9
Joe
Typewriter
70 x 1000
Joe
Typewriter
3600
Joe
Typewriter
175
Joe
Typewriter
9
Joe
Typewriter
=
Joe
Typewriter
=
Joe
Line
Joe
Line
Joe
Line
Joe
Line
Joe
Rectangle
Joe
Rectangle
Joe
Typewriter
50
Joe
Typewriter
9
Joe
Typewriter
175
Joe
Typewriter
9
Joe
Line
Joe
Line
Joe
Rectangle
Joe
Rectangle
Joe
Typewriter
175
Joe
Typewriter
9
Joe
Typewriter
9
Joe
Typewriter
50
Joe
Line
Joe
Line
Joe
Rectangle
Joe
Typewriter
125
Joe
Typewriter
9
Joe
Line
Joe
Rectangle
Joe
Typewriter
25
Joe
Typewriter
18
Joe
Line
Joe
Rectangle
Joe
Rectangle
Joe
Rectangle
Joe
Typewriter
50
Joe
Typewriter
9
Joe
Typewriter
175
Joe
Typewriter
9
Joe
Line
Joe
Line
Joe
Typewriter
125
Joe
Rectangle
Joe
Typewriter
-4.9
Joe
Rectangle
Joe
Typewriter
1200
Joe
Rectangle
Joe
Typewriter
4.9
![X i = indicator random variable of the event that i-th person gets his hat back. E[X i ]=1/20 X=X 1 +…+X 20 E[X] = E[X 1 ] +…+ E[X 20 ] = 1.](https://static.fdocuments.us/doc/165x107/56649d785503460f94a5b335/x-i-indicator-random-variable-of-the-event-that-i-th-person-gets-his-hat.jpg)