# Statistical Methods Practice Test | Methods in Biology

1.Variation in two characters in two or more species can be best represented by
Histogram
Linear curve
Scattered diagram
Triangular box

2.Which one of the following statements regarding normal distribution is not correct
it is symmetric around the mean
it is symmetric around the median
it is symmetric around the mode
it is symmetric around the variance

3. Choose the correct answer from the statements indicated below:
Chi square test is parametric
Non-parametric test assumes normal distribution
Results can be significantly affected by outliers in a parametric test
Non-parametric test is more powerful as compared to parametric test

4.Select the option that represent the correct combination of non parametric tests and its equivalent parametric test repectively that can be used to compare two or more groups
Wilcoxon Rank Sum Tests and Paired t test
Wilcoxon Rank Sum Tests and Spearman correleation
Spearman correleation and Krukal Wallis test
Mann-Whitney U test and Pearson correlation

5.The use of Kruskal wallis test is most appropriate in which of these cases?
These are more than two groups and each group is normally distributed
These are more than two groups and the distribution in each group is nor normal
These are two groups and each group is normally distributed
These are two groups and the the distribution in each group is not normal)

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