Biostatistics

Which of the following is not a characteristic of the normal distribution?

• Symmetry

• Bell shape

• Skewness

• Unimodality

What is the mean of a normal distribution?

• 0

• 1

• Depends on the standard deviation

• Depends on the data

Which of the following is an example of a continuous variable that follows a normal distribution?

• Height

• Gender

• Blood type

• Eye color

Which of the following tests is used to compare two related samples?

• Paired t-test

• Mann-Whitney U test

• Wilcoxon rank-sum test

• Kruskal-Wallis test

Which of the following tests is used to compare three or more groups?

• ANOVA

• Mann-Whitney U

• t-test

• Wilcoxon rank-sum

Which of the following test is used to test the association between categorical variables?

• ANOVA

• Chi-square

• Mann Whitney

• Kruskal Wallis