Statistical Concepts Quiz
A 5-question quiz on statistical concepts
1. Which statistical model is commonly used to analyze the relationship between two variables?
Regression analysis
Factor analysis
Cluster analysis
Discriminant analysis
2. What does the term 'p-value' indicate in statistical hypothesis testing?
Probability of making a type I error
Probability of making a type II error
Strength of the relationship between variables
Level of significance
3. Which measure of central tendency represents the middle value in a dataset?
Mean
Mode
Median
Range
4. In a normal distribution, what percentage of data falls within one standard deviation from the mean?
50%
68%
95%
99.7%
5. What does a correlation coefficient measure?
Strength and direction of a linear relationship
Difference between two group means
Variability within a dataset
Probability of an event
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