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Odds in statistics and Odds in a horse race (ソースを閲覧)
2022年11月7日 (月) 00:08時点における版
、 2022年11月7日 (月) 00:08→From a view point of winning probabilities
|1/20
|}
===Converting winning probabilities into odds===
Here winning probabilities are converted into odds as follows:
<nowiki>*</nowiki>''note that here odds are '''[probability the horse does not win]:[probability the horse wins]'''''
{|class="wikitable"
|-
!style="width:50px"|Horses
!style="width:80px"|Bettors
!style="width:140px"|If the horse wins
!style="width:130px"|Calculation
!style="width:80px"|Winning probability
!style="width:80px"|Odds
|-
|style="text-align:center"|A
|10 bettors
|$20 into 10 bettors
|$20 ÷ 10 = $2
|10/20
|10:10
|-
|style="text-align:center"|B
|5 bettors
|$20 into 5 bettors
|$20 ÷ 5 = $4
|5/20
|15:5
|-
|style="text-align:center"|C
|3 bettors
|$20 into 3 bettors
|$20 ÷ 3 = $6.66..
|3/20
|17:3
|-
|style="text-align:center"|D
|2 bettors
|$20 into 2 bettors
|$20 ÷ 2 = $10
|2/20
|18:2
|-
|style="text-align:center"|E
|1 bettor
|$20 into 1 bettor
|$20 ÷ 1 = $20
|1/20
|19:1
|}
===Interpretation of Odds in a horse race===
Here we've got odds in a horse race mathematically.
Generally speaking, if odds are given as "18:2" or "9:1" (usually written as "9-1" in a real horse race) against a horse, it means as follows:
{{quote|content=If you bet $1 to the horse and the horse wins,<br>you will earn $9 (usually called "payout" in a real horse race)<br>and additionally $1 back that you bet}}
