Country : United Kingdom
Assignment Task 

 

1. Tables used to display counts of a categorical variable are called:

  • crosstabs 
  • contingency tables 
  • either crosstabs or contingency tables 
  • neither crosstabs nor contingency tables

 

2. A sample of 150 students at a state university was taken after the final business statistics exam to ask them whether they went partying the weekend before the final or spent the weekend studying, and whether they did well or poorly on the final. The following table contains the result. Of those in the sample who went partying the weekend before the final exam, what percentage of them did well in the exam?

 

3. Of those in the sample who did well on the final exam, what percentage of them went partying the weekend before the exam?

 

4. What percentage of the students in the sample went partying the weekend before the final exam and did well in the exam?

 

5. What percentage of the students in the sample spent the weekend studying and did well in the final exam?

 

6. If the sample is a good representation of the population, what percentage of those who spent the weekend studying should we expect to do poorly on the final exam?

 

7. We study relationships among numerical variables using: 

correlation 

covariance 

scatterplot charts 

all of these choices 

none of these choices

 

 

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  • Posted on : February 11th, 2019
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