8 - Statistics Review

What type of association does this graph have?

• positive 
• negative
• none
• all of the above

What is the type of association?

• Negative 
• no association
• positive 

What type of association does this graph have?

• positive
• negative
• none
• all of the above

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

What type of correlation (association)?
The outside temperature and the amount of layers you wear. 

• Positive correlation
• Negative correlation
• No correlation

The number of siblings you have and your weight. 

• Positive correlation
• Negative correlation
• No correlation

As x increases, y decreases.

• no correlation
• negative correlation
• correlation coefficient
• positive correlation

As x increases, y increases

• correlation coefficient
• causation
• positive correlation
• negative correlation

If Joe worked 30 hours, how much is he expected to earn?

• $600
• $200
• $1000
• $800

What is the general trend of this line graph?

• The more you mow, the less money you make.
• You make the same amount of money regardless of how long you mow.
• The more you mow, the more money you make.
• Mowing is dangerous.