Systematic differences refer to consistent variations or disparities between groups or individuals in a study. These differences are not due to random chance but rather indicate a pattern or trend.
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Skewed Data Distributions: Skewed data distributions occur when the data points are not evenly distributed around the mean. Instead, they tend to cluster towards one end of the distribution, either the left (negative skew) or right (positive skew).
Inferences: Inferences are conclusions or predictions made based on available information or data. In statistics, researchers make inferences about populations based on samples.
Sampling Bias: Sampling bias occurs when certain members of a population are more likely to be included in a sample than others. This can lead to inaccurate conclusions about the population as a whole.