Scatter plot and lines of best fit - 2

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

Tags

CCSS.HSF-LE.A.1B

Which relationship could be represented by this scatter plot?

• As the number of muffins in a box increases, the price increases.

• As the speed of a car increases, the distance the car travels increases.

• As the population of a city increases, the number of schools in the

  city increases.

• As the number of daylight hours increases, the number of night hours decreases.

Tags

CCSS.HSF-LE.A.1B

What type of correlation does this graph have?

• Negative

• no association

• positive

Tags

CCSS.HSF-LE.A.1B

The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding.  What is the equation of the line of best fit?

• y = -25x + 170
• y = 25x + 170
• y = -(5/8) x + 170
• y = (5/8) x + 170

Tags

CCSS.HSF.LE.B.5

The graph above shows a line of best fit for data collected on the amount earned by waiters and waitresses last week in relation to the number of tables they served.  What is the equation of the line of best fit?

• y = (5/3) x + 375
• y = (1/3) x + 475
• y = (5/3) x + 475
• y = (1/3) x + 375

The graph  shows a line of best fit for the data collected on the amount of cell phone bills in relation to the number of minutes used.  What is the equation of the line of best fit.

• y = (1/2) x + 3
• y = (1/2) x + 15
• y = (1/40) x 
• y = (1/40) x + 15

Tags

CCSS.HSF.LE.B.5

Mrs. Moises, the school counselor, keeps a candy jar in her office for students.  During one week, she kept count of how many students came to visit her and the number of candies in the jar, as show in the scatter plot.  Based on the trend line, what is the best prediction for the number of candies in the jar when 30 students visit her?

• 90
• 180
• 135
• 150

Tags

CCSS.HSF.BF.A.2

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• A. 50 min
• B. 80 min
• C. 45 min
• D. 60 min

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.
• The more books students read, the higher their English grade.
• The fewer books students read, the higher their English grade. 
• No relationship exists between the number of books students read and their English grades. 

Tags

CCSS.HSF.LE.B.5

What represents the x axis?

• ABC Company
• Hours Worked
• Amount Earned in Dollars
• Hours in Car

Tags

CCSS.HSF.LE.B.5