Results 1 to 5 of 5

Thread: Sample Size & Variance? Question!

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Senior Member
    Join Date
    Mar 2015
    Location
    US West Coast
    Posts
    231


    Did you find this post helpful? Yes | No

    Sample Size & Variance? Question!

    So recently I've been changing my play style and aggression based on the pit bosses / time of day / what I can get away with / whether I'm up in the first hour or down (usually when I'm down I'm more prone to full throttle ramp because of the gambler chasing image that I can get away with). I've noticed in the past couple months, a weird result is forming on my spread sheet. Now I don't have more than 250 hours logged for the past 2-3 months, but these are the results.

    Expected EV: $10,800

    30-1 Spread: $35.57/HR 2.5% ROR going from $10 to $300
    [2 hands] at 15-1 Spread: $58.10/HR 12% ROR going from 2 x $20 to $300

    Actual Results: $5,400
    30-1 Spread: 175 hours - $ 5087
    [2 hands] 15-1 Spread: 75 hours - $300

    While I am below expected EV (that's fine), what the heck is going on with my 2 x $20 results. The reason it is 2 x $20 is because my joint requires double table min. Question: ----------> Is it worth it for me to lock up two spots and attempt to wong out at neg TC 2+ (usually at 1/2 to 3/4 end of shoe) or just play 1 spot and hope to spread to 2 whenever there's room. My joint is always filled with people so I won't always have the chance for 2 hands if I don't lock. I know it's unfair to say the EV is better because I'm jumping from 2.5% ROR to 12% ROR (sorta have to because the requirement to double table min) - is it worth it? What would you do? Just 1 spot for now and build the bankroll till you can have lower ROR for 2 hands? (I'm okay with the risk, I tolerate it when I have the chance to). Question: ---------> Also what's going on with my poor results with 2 hand spreading of 15-1. Is it more likely for me to win money with such a huge spread of 30-1? Yet CVCX states my EV is 2x better. Mathwise this whole thing is simple - variance is at work and it's such a small sample size that I don't have enough hours logged at 2 hands. Just asking for reassurance I guess.

    I just recently started taking my recording spread sheet seriously, but I know 110% I'm above my actual EV when looking back at the 500 hours area. But it's all unfair because I was playing with a 15%+ ROR and sometimes sessions would probably be 20% if I was table maxing at $1K rounds. With that said - should I keep 1 spot and go to 2 whenever, or take on the variance at 2 x $20 at 15-1 spread or go safer route and go 30-1 spread at $10 to $300 and jump 2 when I can. Am I just being silly and result oriented? 2 hand isn't a matter of "safer" or "riskier" (in fact it should reach my N0? faster). Yet it feels like I cant win those sessions and the 2 hand spread of 15-1 is limiting my profits despite putting more money out. Maybe it's because I'm playing more money at negative TC-1 (because I tombstone most my sesh - sometimes I stay at neg TC-2 if it's end of shoe). Idk.
    Last edited by 20 to 1 Spread; 07-27-2015 at 01:02 AM.

Similar Threads

  1. festinarazi: Variance and EV question
    By festinarazi in forum Blackjack Beginners
    Replies: 2
    Last Post: 02-06-2005, 08:12 PM
  2. Stingray: what sample size do i need
    By Stingray in forum Blackjack Main
    Replies: 0
    Last Post: 11-17-2004, 12:24 PM
  3. Garry Baldy: DEx variance question
    By Garry Baldy in forum Theory & Math
    Replies: 4
    Last Post: 08-22-2004, 04:23 AM
  4. Stan: Question on bet size vs bankroll
    By Stan in forum Blackjack Beginners
    Replies: 3
    Last Post: 12-30-2002, 06:42 PM
  5. Takisgaias: Variance question
    By Takisgaias in forum Blackjack Main
    Replies: 8
    Last Post: 02-25-2002, 05:26 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

About Blackjack: The Forum

BJTF is an advantage player site based on the principles of comity. That is, civil and considerate behavior for the mutual benefit of all involved. The goal of advantage play is the legal extraction of funds from gaming establishments by gaining a mathematic advantage and developing the skills required to use that advantage. To maximize our success, it is important to understand that we are all on the same side. Personal conflicts simply get in the way of our goals.