Analyzing Data Day 2

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

r= 0.3

• Strong positive

• Weak positive

• Strong negative

• Weak negative

r= - 0.87

• Strong positive

• Weak positive

• Strong negative

• Weak negative

Which sentence describes the relationship shown on this scatterplot?

• As the temperature decreases, the visitors increase. 
• As the temperature increases, the number of visitors increases. 
• As the visitors increase, the temperature decreases. 
• No correlation

Based on the graph, if Joe earned $400, how many hours did he work?

• 15 hours
• 20 hours
• 25 hours
• 30 hours

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• f(x) = 25.05x + 5.57
• f(x) = 5.57x + 25.05
• f(x) = -5.57x + 25.05
• f(x) = 5.57x - 25.05

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

What does the correlation coefficient tell us about the relationship between number of widgets and length of package?

• strong positive correlation

• strong negative correlation

• weak positive correlation

• weak negative correlation

Which equation best represents the data in the table?

• y = -13x + 143
• y = 13x + 143
• y = 143x + 13
• y = .996x + .998

What is the correlation coefficient of the line of best fit for the table?

• 1
• -1
• 0.887
• 0.942

Attendance & grades have a r-value of
 ( - 0.89)...this indicates a ______ correlation.

• Strong positive 
• Weak positive 
• Strong negative 
• Weak negative