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Author Topic: Shutterstock--No Sales in Three Days.  (Read 8697 times)

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« Reply #25 on: August 05, 2017, 05:46 »
0

Actually am I wrong.....? .0045% or is it .45% not so sure now  ???

Sorry to have confused you  :). Since everyone was citing percentages, I removed two zeros from the actual fraction 0.000045 that I would normally use in relation to 1 being the highest possible probability. It is once every 60 years for one person, but once every seven months for a group of 100 identical photographers.  :)

But we can definitely agree, the underlying assumptions are way off. Several years ago I had my entire portfolio purchased on one day, including some items that never sold on another occasion, so much of a garbage they were. The Poisson probability of this event would be astronomically small. The explanation was simple - it was all acquired by a single entity somewhere in Germany, as judged by the map SS provides. Since then I call mass purchases from my portfolio a "German streak". Not so sure about the phrasing  8)
Not your fault I didn't read it properly!


« Reply #26 on: August 05, 2017, 09:46 »
0
"The chance of Red or Black is 16 in 38 every spin". eh? I believe most roulette wheels are 0-36 so in fact the chance of red is 18/37 black 18/37 zero 1/37 which adds up to 1 which all probabilities do. Therefore the chance of four blacks in a row is 18/37*18/37*18/37*18/37 in the same way as the chance of say red/black/red/black or any other sequence. Correct the balls have no memory so if for example red has come up 14 times it is no more or less likely that it will come up a 15th time things that have occurred in the past have a probability of 1. However a run of 15 reds remains unlikely (but statistically it will happen at some point) ;-). It wouldn't matter if you changed colour Martingale just says double your stake and sooner or later it will come good which is true but you could be bankrupt before it happens.

While I don't think SS is dying I don't think its being run as well as in the past and is overpriced on the stock market. As a business there's plenty worse out there but I would rather put my money on red than buy SS shares at the moment ;-). But they remain my safest bet for selling images.

assuming you are in Europe, and you are, the wheels has 37 slots. 18 red, 18 black and one green. 18 in 37 you are correct. The point is, what happened on one wheel in one location in one spin is not going to change the probability for the next spin. It's hard for humans who are superstitious to believe or understand. Probability is the same each spin, as an individual event. It's always 1 in 37 or 18 in 37 or anything you play. In fact every bet on the roulette wheel is the same. There's no advantage to playing any number or combinations of numbers. Perfect game.

The possibility, a different word make a note, that Red will come up 15 times in a row, is unlikely. I've seen it happen. This does not change Probability of the next spin, in any way. That's why casinos make good money. People think they can predict what the cards or dice will do, based on the past, when the past spins have no relevance to the current spin.

One spin doesn't effect the next, unless the game is rigged.

True I'll sell more images on SS than at the casino, and I won't bet against any streak on roulette. I do like it when I hit a steak of sales on some new image, where it hits and keeps selling. We mostly can't predict sales on the little sold or unsold images. Those are need of an individual buyer and then they go away. Regular repeat selling images, my favorites, I have some, are the bread and butter.

Oh and yes SS stock is over valued on the market.
« Last Edit: August 05, 2017, 09:50 by YadaYadaYada »

« Reply #27 on: August 05, 2017, 09:49 »
+1
Quote
Funny how people don't think when they have high sales that SS is manipulating the system....thats down to their brilliant photography of course ;-)


This is also known as the 'Headwinds Paradox', interesting paper on the subject:

http://psycnet.apa.org/record/2016-56495-001

Synopsis:

Quote
Barriers and hindrances command attention because they have to be overcome; benefits and resources can often be simply enjoyed and largely ignored. As a result of this headwind/tailwind asymmetry, Democrats and Republicans both claim that the electoral map works against them (Study 1), football fans take disproportionate note of the challenging games on their teams schedules (Study 2), people tend to believe that their parents have been harder on them than their siblings are willing to grant (Study 3), and academics think that they have a harder time with journal reviewers, grant panels, and tenure committees than members of other subdisciplines (Study 7). We show that these effects are the result of the enhanced availability of peoples challenges and difficulties (Studies 4 and 5) and are not simply the result of self-serving attribution management (Studies 6 and 7). We also show that the greater salience of a persons headwinds can lead people to believe they have been treated unfairly and, as a consequence, more inclined to endorse morally questionable behavior



Now there's some meat for thought. Mom always liked you best, SS favors everyone else in the search, except me.  ;D

« Reply #28 on: August 05, 2017, 10:36 »
0
"The chance of Red or Black is 16 in 38 every spin". eh? I believe most roulette wheels are 0-36 so in fact the chance of red is 18/37 black 18/37 zero 1/37 which adds up to 1 which all probabilities do. Therefore the chance of four blacks in a row is 18/37*18/37*18/37*18/37 in the same way as the chance of say red/black/red/black or any other sequence. Correct the balls have no memory so if for example red has come up 14 times it is no more or less likely that it will come up a 15th time things that have occurred in the past have a probability of 1. However a run of 15 reds remains unlikely (but statistically it will happen at some point) ;-). It wouldn't matter if you changed colour Martingale just says double your stake and sooner or later it will come good which is true but you could be bankrupt before it happens.

While I don't think SS is dying I don't think its being run as well as in the past and is overpriced on the stock market. As a business there's plenty worse out there but I would rather put my money on red than buy SS shares at the moment ;-). But they remain my safest bet for selling images.

assuming you are in Europe, and you are, the wheels has 37 slots. 18 red, 18 black and one green. 18 in 37 you are correct. The point is, what happened on one wheel in one location in one spin is not going to change the probability for the next spin. It's hard for humans who are superstitious to believe or understand. Probability is the same each spin, as an individual event. It's always 1 in 37 or 18 in 37 or anything you play. In fact every bet on the roulette wheel is the same. There's no advantage to playing any number or combinations of numbers. Perfect game.

The possibility, a different word make a note, that Red will come up 15 times in a row, is unlikely. I've seen it happen. This does not change Probability of the next spin, in any way. That's why casinos make good money. People think they can predict what the cards or dice will do, based on the past, when the past spins have no relevance to the current spin.

One spin doesn't effect the next, unless the game is rigged.

True I'll sell more images on SS than at the casino, and I won't bet against any streak on roulette. I do like it when I hit a steak of sales on some new image, where it hits and keeps selling. We mostly can't predict sales on the little sold or unsold images. Those are need of an individual buyer and then they go away. Regular repeat selling images, my favorites, I have some, are the bread and butter.

Oh and yes SS stock is over valued on the market.
If you were to tell people that the odds of exactly the same numbers coming up on the lottery next week as what happened this  week  are the same as any other combination most wouldn't believe it ;-). On our tv when they do the lottery draw the always say when that number last came up etc etc....humans like to see patterns and want certainty rather than accept plain luck! The probability of any sequence though is the probability of each event multiplied by the next which is why I multiplied them out ;-).
« Last Edit: August 05, 2017, 10:43 by Pauws99 »


 

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