Important fact regarding Biostatistics Basics: Mean = average. Median = middle value. Mode = most frequent. SD = 1SD = 68%, 2SD = 95%, 3SD = 99.7%. Chi-square = for categorical data. t-test = for means (2 groups). ANOVA = for means (>2 groups).

This fact is from Biostatistics Basics in Public Health Dentistry. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.

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More Facts from Biostatistics Basics

Mean = average of all values

Median = middle value when arranged in order

Mode = most frequently occurring value

Standard deviation: 1SD = 68 percent, 2SD = 95 percent, 3SD = 99.7 percent

Chi-square test = categorical data association

Student t-test = comparing means of 2 groups

ANOVA = comparing means of more than 2 groups

p-value less than 0.05 = statistically significant.