Standard Deviation Q

[calcbandit]

Assume that I am a poker playing robot who takes 0 time to make and click in my decisions.

I win $10/hr at one table of poker.
My standard deviation is $20/hr.

Assume I start 10 tabling.
My winrate now goes to $100/hr. Is my SD now $200/hr?

[BruceZ]

[ QUOTE ]
Assume that I am a poker playing robot who takes 0 time to make and click in my decisions.

I win $10/hr at one table of poker.
My standard deviation is $20/hr.

Assume I start 10 tabling.
My winrate now goes to $100/hr. Is my SD now $200/hr?

[/ QUOTE ]

No, SD = sqrt(10)*$20/hr = $63.25/hr. Your variance goes up by a factor of 10 from (20)^2 = 400 to 4000.