Final answer:
Sports statistics percentages represent both the success rate of specific actions and measures of player efficiency, such as three-point percentages for basketball players or save percentages for hockey goaltenders.
Step-by-step explanation:
The percentages such as three-point throws for NBA stars or save percentages for NHL goaltenders represent the success rate of specific actions. For example, a player's three-point percentage reflects the number of three-point shots made divided by the total attempted, giving insight into their proficiency in that aspect of the game. Similarly, a goaltender's save percentage is calculated by dividing the number of saves by the total number of shots on goal, indicating their effectiveness at preventing the opposing team from scoring.
These percentages are statistical measures that gauge the efficiency of a player or team in various aspects of the game. So, in the context of sports statistics, the correct answer to what these percentages mean would be both the success rate of specific actions (Option a) and statistical measures of player efficiency (Option c).