n.可变性，易变性，反复不定

The study found high variability in the test scores among students from different socioeconomic backgrounds.
研究发现来自不同社会经济背景的学生在考试成绩上存在较大差异。
The new manufacturing process has significantly reduced product variability, ensuring consistent quality.
新的制造工艺显著降低了产品变异性，确保了质量的一致性。
In finance, market volatility is a measure of the variability of returns for a given security or market index over time.
在金融领域，市场波动性是衡量特定证券或市场指数收益率随时间变化的变异性指标。
Genetic variability within a species allows for adaptation to diverse environments and can be a key factor in evolution.
物种内的遗传变异性使其能够适应不同的环境，是进化中的关键因素。
The experiment showed considerable variability in plant growth depending on the type of fertilizer used.
实验表明，根据所用肥料的类型，植物生长存在相当大的差异。
Temperature variability across different regions affects crop yields and agricultural planning.
不同地区之间的温度变异性影响作物产量和农业规划。
The software's algorithm adjusts for individual variability in learning speed, providing personalized lesson plans.
该软件的算法针对个人在学习速度上的差异进行调整，提供个性化的课程计划。
High blood pressure variability has been linked to an increased risk of cardiovascular disease.
血压变异性高与心血管疾病的风险增加有关联。
The teacher noted the variability in students' attention spans during online classes compared to in-person instruction.
老师注意到在线课程中学生注意力持续时间的变异性比面对面教学时更为明显。
Environmental variability, such as changes in rainfall patterns, can have profound impacts on wildlife populations.
环境变异性，比如降雨模式的变化，可能对野生动物种群产生深远的影响。