What deduction is applied for cast deductions of 31 to 45 degrees?

The correct choice indicates that for cast deductions between 31 to 45 degrees, there is no value part (VP) awarded, and the deduction applied is between 0.15 to 0.20. This range reflects the fact that while the gymnast did perform a cast, the execution was deemed insufficient for the skill to be considered entirely valid.

In gymnastics scoring, value parts are critical as they determine if a skill contributes to the overall score. In this case, since the cast angle is outside the required standard (a full vertical position typically improves the recognition and value of the skill), the lack of VP accompanies a specified deduction. The specific range of deductions (0.15 to 0.20) indicates varying penalties based on how far the angle deviates from the ideal in this range, capturing nuances of execution quality.

Understanding this framing is vital, as it helps in comprehending how performance angles and execution impact the overall scoring in gymnastics. This knowledge is particularly relevant for judges and athletes aiming to maximize their performance scores while minimizing deductions.