Bets · Inside bet · plein
Roulette Straight-Up Bet
Roulette straight-up bet ek akele number par chip rakhti hai. Table ki sabse kam aane wali jeet aur sabse bada payout, baaki sab jaisa hi 2.70% house edge ke saath.
cover
1 / 37
probability
2.70%
payout
35:1
house edge
2.70%
EV prati $1
−$0.027
SD prati $1
5.84
Table par · udaharan: 17
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
2:1
2:1
2:1
1st 12
2nd 12
3rd 12
1–18
Even
Red
Black
Odd
19–36
Wheel par · 25 aur 34 ke beech
Roulette straight-up ka payout aur probability
37 mein se ek pocket jeetta hai: 1/37, yaani 2.70%. Casino 35:1 deta hai. 37 pockets par fair payout 36:1 hota; woh ek gayab unit hi house edge hai.
p(jeet) = 1/37 = 0.0270
EV prati $1 = (1/37)(35) − (36/37)(1) = −1/37 = −$0.0270
EV prati $1 = (1/37)(35) − (36/37)(1) = −1/37 = −$0.0270
Udaharan stake
stake17 par $10
agar 17 lage (1/37)+$350 jeete, stake wapas
agar kuch aur aaye (36/37)−$10
har spin expected nateeja−$0.27
Variance
Expected loss red jaisa hi hai, lekin nateejon ka phailaav nahi. Har lagaye dollar par straight-up bet ka standard deviation lagbhag 5.84 hai, even-money bet ke 1.00 ke muqable. $10 par 100 spins mein red player aam taur par expectation ke ±$100 ke andar hota hai; straight-up player aam taur par ±$584 ke andar.
straight-up
5.84
corner (4)
2.84
red (18)
1.00
Khaasiyat
- Median session ka nateeja lagatar nuksaan hai; mean ko kabhi-kabhar ke 35:1 hits upar kheench lete hain.
- Hit ke liye expected intezaar 37 spins hai, aur intezaar zyadatar logon ke andaaze se lamba chalta hai: 37 spins ke baad bhi 36% chance hai ki ek bhi jeet na ho.
- Inside bets ke liye table minimum aam taur par har chip par kam hota hai, lekin aksar inside bets par ek minimum total lagta hai.
- French-style casinos mein roulette ki straight-up bet ko plein kehte hain.
Thodi hansi
Red jaisa hi expected loss, kahin zyada phailaav ke saath.