1. What is biostatistics?
A) The study of biological processes
B) The application of statistics to biological and health sciences
C) The study of veterinary medicine
D) The study of animal genetics
Answer: B) The application of statistics to biological and health sciences
2. Which of the following is a measure of central tendency?
A) Standard deviation
B) Variance
C) Mean
D) Correlation coefficient
Answer: C) Mean
3. What does a p-value of less than 0.05 indicate in a hypothesis test?
A) The null hypothesis is accepted
B) The result is not statistically significant
C) The null hypothesis is rejected
D) The data is invalid
Answer: C) The null hypothesis is rejected
4. In a normal distribution, what percentage of data falls within ±1 standard deviation of the mean?
A) 50%
B) 68%
C) 95%
D) 99%
Answer: B) 68%
5. Which type of data is represented by the number of animals in a farm?
A) Nominal data
B) Ordinal data
C) Discrete data
D) Continuous data
Answer: C) Discrete data
6. What type of sampling ensures every individual has an equal chance of selection?
A) Stratified sampling
B) Systematic sampling
C) Random sampling
D) Convenience sampling
Answer: C) Random sampling
7. Which of the following statistical tests is used to compare the means of two independent groups?
A) Chi-square test
B) T-test
C) ANOVA
D) Regression analysis
Answer: B) T-test
8. What is the purpose of regression analysis in biostatistics?
A) To compare two means
B) To measure correlation between two variables
C) To predict the relationship between dependent and independent variables
D) To summarize categorical data
Answer: C) To predict the relationship between dependent and independent variables
9. The probability of making a Type I error in hypothesis testing is represented by which symbol?
A) β (Beta)
B) α (Alpha)
C) μ (Mu)
D) σ (Sigma)
Answer: B) α (Alpha)
10. What is the main purpose of a Chi-square test in veterinary studies?
A) To compare two means
B) To test the relationship between categorical variables
C) To predict future trends
D) To measure variance in a dataset
Answer: B) To test the relationship between categorical variables