Public Health Dentistry • NEET MDS
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.
Use these mnemonics during your revision. The key associations above are designed to help you recall Biostatistics concepts instantly during the exam. Focus on the “equals” associations — these are the most commonly tested patterns in NEET MDS.