Related Clues:

• Two-to-one, for one
• IQ, e.g.
• Sine, cosine or tangent
• Sine, e.g.
• Odds, for example
• Tangent, for one
• Many a stat
• Price-earnings, for one
• One thing on top of another?
• 3:5, e.g.
• Mathematical relationship
• Math proportion
• Track odds, e.g.
• 2:1, for one
• Two to one or three to one