1. What is the purpose of bivariate data analysis?
A. To analyze two or more sets of data to determine the relationship between them.
2. What type of graph is commonly used to display bivariate data?
B. Scatter plot
3. What does the correlation coefficient measure in bivariate data analysis?
C. The strength and direction of the relationship between two variables
4. What is the range of values for the correlation coefficient?
A. -1 to 1
5. What is the probability of rolling a 4 on a fair six-sided die?
B. 1/6
6. If two events are independent, what is the probability of both events occurring?
C. The product of the individual probabilities of each event
7. What is the probability of drawing a red card from a standard deck of 52 cards?
B. 26/52 or 1/2
8. If P(A) = 0.4 and P(B) = 0.3, what is the probability of either event A or event B occurring?
A. P(A or B) = P(A) + P(B) = 0.4 + 0.3 = 0.7
9. What is the sample space for flipping a coin and rolling a six-sided die?
C. {H1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6}
10. What is the complement of an event with a probability of 0.8?
A. 0.2
11. What is the formula for calculating conditional probability?
A. P(A|B) = P(A and B) / P(B)
Bivariate data analysis and probability unit test
1 answer
1 answer