Generally, the more standard deviations that there are from the expected representation, the lower the probability that the actual pass rate is a random one.

Question

Quizplus · Accepted Answer

The number of standard deviations from the expected representation (mean) indicates how unusual or rare the actual pass rate is. The more standard deviations away, the lower the probability that the observed outcome is due to random chance, suggesting it is statistically significant.

Generally, the More Standard Deviations That There Are from the Expected