Scatterplot Estimating

The police department tracked the number of ticket writers and number of tickets issued for the past 8 weeks.  The scatter plot shows the results.  Which statement is true?

• More ticket writers results in fewer tickets issued.
• There were 50 tickets issued every week.
• When there are 10 ticket writers, there will be 800 tickets issued.
• More ticket writers results in more tickets issued.

Tags

CCSS.HSF.LE.B.5

Mr. Thomas wanted to know if the amount of class time that he gave students to study affected their test scores.  What kind of relationship between class study time and test scores is shown on the scatter plot.

• No correlation
• Positive correlation
• Negative correlation
• Positive then negative correlation

Tags

CCSS.HSF.LE.B.5

The scatter plot shows the number of absences in a week for classes of different sizes.  Trevor concluded that there is a positive correlation.  Which statement best describes why Trevor's conclusion was incorrect.

• The largest class does not have the most absences.
• The smallest class does not have the least number of absences.
• The data show no relationship between class size and number of absences.
• The data show a negative relationship between class size and number of absences.

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

CCSS.HSS.ID.C.9

This scatterplot could show the relationship between which two variables?

• speed of an airplane (x) vs. distance traveled in one hour (y)
• outside air temperature (x) vs. air-conditioning costs (y)
• age of an adult (x) vs. height of an adult (y)
• distance traveled (x) vs. gas remaining in the tank (y)

Tags

CCSS.HSS.ID.B.6

Which graph best shows a positive correlation between the number of hours studied and the test scores?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.EE.B.5

Which graph shows a line of best fit for the scatter plot?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.EE.B.5

Which data will most likely show a negative correlation when graphed on a scatter plot?

• The outside temperature and the number of people wearing gloves.
• The distance a student lives from school and the amount of time it takes to get to school.
• The number of visitors at an amusement part and the length of the lines for the rides.
• A student's height and grade point average.

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

A group of friends recorded the time it took to ride their bikes around the park. This scatter plot shows their results with the line of best fit. Which is closest to the number of minutes it would take to complete 9 laps?

• 3

• 5

• 8

• 7

Based on the line of best fit for the scatter plot, which of the following amounts is closest to the cost of a 120-minute phone call?

• $100

• $12

• $15

• $20

What is the type of relationship?

• Negative 
• No Relationship
• Positive
• Constant 

Tags

CCSS.HSF-LE.A.1B