置信水平 zhì xìn shuǐ píng 🔊 confidence level (math.) + Keep this word Meanings zhì xìn shuǐ píng confidence level (math.) Its characters 置zhìto installHSK 7–9信xìnletterHSK 3水shuǐwaterHSK 1平píngflat; level; smoothHSK 5