A. Use the following population data to complete the next two questions:
50, 62.5, 37.5, 75.0, 45.0, 47.5, 15.0, 25.0
What is the mean?
What are the variance and standard deviation?
B. Use the following data to complete the next three questions:
Data A 10,421; 10,110; 9,862; 10,475; 9,920; 10,592; 11,213; 10,933; 11,134; 10,316
Data B 1,379; 1,356; 1,373; 1,410; 1,389; 1,463; 1,529; 1,499; 1,516; 1,355
What is the sample covariance between Data A and Data B
What is the sample correlation coefficient between Data A and Data B
How would you classify the linear relationship between Data A and Data B? a. Weak b. Moderate c. Strong d. No relationship
C. Use the following data to complete the next five questions.
A sample of 10 cell phone/cable/Internet bills: $1,589; $593; $1,223; $869; $423; $1,720; $708; $1,425; $922 and $308.
What is the mean and median of the cost?
What is the five-number summary of the cost?