PROBABILITY → ODDS
Enter probability • outputs odds FOR and AGAINST
Odds FOR = p:(1−p) • NO SCROLL
INPUT TYPE
DEC
Decimal p between 0 and 1
ROUNDING
2DP
Decimal and % display
p (DECIMAL)
0.6
0 ≤ p ≤ 1
FRACTION (a/b)
3/5
Used only when INPUT TYPE = FRACTION
REMINDER
Odds FOR compares favourable : unfavourable
FOR = p : (1−p) • AGAINST = (1−p) : p
WORKING
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ODDS
READY
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INPUT TYPE
DEC
Decimal p between 0 and 1
ROUNDING
2DP
Decimal and %
p
0.6
0 ≤ p ≤ 1
FRACTION
3/5
Used only for FRACTION
WORKING
—
—
—
—
—
ODDS
READY
—
PAGE 1/2
HOW TO USE
1) Choose input type
2) Enter probability
3) Press SOLVE
4) Read odds FOR/AGAINST
FORMULAS
Odds FOR = p : (1−p)
Odds AGAINST = (1−p) : p
Then scale to whole numbers
WORKED EXAMPLE
p = 0.6
FOR = 0.6 : 0.4
Scale → 3 : 2
NOTES
If p=0 → FOR 0:1
If p=1 → FOR 1:0
Keep odds as whole numbers
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