Examlex
A frequency distribution table is an efficient means to organise and summarise a set of data.
Test Statistic
A calculated value used in hypothesis testing that helps to determine whether to reject the null hypothesis.
Pooled Variance
Pooled variance is a method used to estimate the variance of two or more groups by combining their variances, assuming they have the same variance but not necessarily the same mean.
Degrees Of Freedom
The number of independent values or quantities which can vary in an analysis without breaking any constraints.
Mean Score
A mean score represents the average outcome derived from a set of scores, reflecting the central tendency of the data.
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