probability value

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(in statistics)

The chances of obtaining a certain pattern of results if there really is no relationship between the variables and the result could therefore have been caused by chance. For example, a p-value of 0.01 (p = 0.01) means there is a 1 in 100 chance the result occurred by chance. If the p value is less than 0.05 (<0.05) then the result is not due to chance and is statistically significant. The lower the p-value the more rigorous the criteria for concluding significance.

Subjects: Dentistry.

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