SCATTER PLOT REVIEW

Which statement best describes the relationship between time shopping online and the number of stores visited?

• As the number of hours increases, the number of stores decreases.

• As the number of hours increases, the number of stores increases.

• The number of hours and the number of stores are about the same.

• As the number of hours decreases, the number of stores increases.

Tags

CCSS.6.EE.C.9

CCSS.6.SP.A.1

CCSS.6.SP.B.4

What does the slope represent in this situation?

• The sloth runs 1 feet in 3 minutes
• The sloth runs 3 feet in 1 minute
• The sloth runs fast
• The sloth runs 6 feet in 1 minute

Tags

CCSS.HSF.IF.B.4

What type of correlation does this scatter plot represent?

• positive linear correlation

• negative linear correlation

• no correlation

• nonlinear correlation

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

What type of correlation does this graph have?

• positive
• negative
• none
• all of the above

Tags

CCSS.8.SP.A.1

CCSS.8.SP.A.2

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points
• To make it look like you know what you are doing

Tags

CCSS.8.EE.B.5

What is the y-intercept and what does it mean in the context of the problem?

• 170 km; means that at 0 hours, the bike rider started 170 km away from his destination

• 170 hours; took the bike rider 170 hours to finish the race

• 170 km; took the bike rider almost 7 hours to ride 170 km

The slope of the graph is 25. What does it mean in the context of the problem?

• it took the bike rider 25 minutes to travel 1 km

• the bike rider traveled on average 25 km per 1 hour

• biker traveled at a speed of 25 mph

What is the most accurate way to find the line of best fit for a scatter plot with a strong correlation?

• draw your own line passing through at least 2 points

• have the calculator use linear regression

• guess

When using the calculator to find the line of best fit follow these steps:

• 1-type in data under STAT Edit; 2-press STAT, arrow to CALC; 3-go to LinReg (#4); arrow till you get the a and b values

• this is not the right choice

• this is not the right choice

• this is not the right choice