1. What is bivariate data?
a) Data with one variable
b) Data with two variables
c) Data with multiple variables
d) Data with no variables
Answer: b) Data with two variables
2. What is the purpose of analyzing bivariate data?
a) To study the relationship between two variables
b) To identify outliers in the data
c) To calculate the mean of the data
d) To determine the sample size
Answer: a) To study the relationship between two variables
3. Which of the following visualizations is commonly used to represent bivariate data?
a) Histogram
b) Box plot
c) Scatter plot
d) Pie chart
Answer: c) Scatter plot
4. How is correlation coefficient used to describe the relationship between two variables in bivariate data?
a) It shows the direction of the relationship
b) It shows the strength of the relationship
c) It shows the variability of the relationship
d) It shows the distribution of the relationship
Answer: b) It shows the strength of the relationship
5. What is the range of values that correlation coefficient can take?
a) -1 to 1
b) 0 to 100
c) 1 to 10
d) -10 to 10
Answer: a) -1 to 1
bivariate data unit test
1 answer
1 answer