5-7 Scatter Plot Quiz

9 Questions | Total Attempts: 777  Settings  • 1.
Teresa records the ages and weights of 12 children in her neighborhood.  If she records this data in a scatter plot, what type of relationship will she most likely see?
• A.

Positive correlation

• B.

Negative correlation

• C.

No correlation

• D.

Constant correlation

• 2.
The scatter plot below shows the number of chapters in a book in relation to the number of typos found in the book.If 12 chapters were written, about how many typos would you expect the book to have?
• A.

14

• B.

15

• C.

18

• D.

20

• 3.
Based on the data in the graph shown, if a team practices 4 hours per week next season, which is the best estimate of the number of debates the team can expect to win?
• A.

20

• B.

16

• C.

12

• D.

1

• 4.
The graph models the relationship between the number of minutes the students of Mr. Bowen's class studied and their test scores on the final exam.  Which statement best describes the rate of change for this relationship?
• A.

The student's scores increased 1 percent for every 10 additional minutes they studied.

• B.

The student's scores increased 10 percent for every additional minute they studied.

• C.

The student's scores increased 2 percent for every additional minute they studied.

• D.

The student's scores increased 1 percent for every additional minutes they studied.

• 5.
An elementary school consists of kindergarten (grade 0) through grade 5.  The equation n = -38g + 378 can be used to determine the number of students, n, who started the school in kindergarten and who are still in the school at grade g.  Which description represents the meaning of 378?
• A.

The number of students who started at the school in kindergarten

• B.

The number of students who were at the school at the end of grade 1

• C.

The number of students who started at the school in kindergarten but who left at each grade

• D.

The number of students who started at the school in kindergarten and who were still there at the end of grade 5.

• 6.
Sara lit a new candle and then recorded its height in inches every hour as (time, height).  Her results were:  (0, 20), (1, 18.4), (2, 16.8), (3, 15.2), (4, 13.6), (5, 12), and (6, 10.4)Which statement is true?
• A.

The height of the candle decreases by 20 inches every hour, and its original height was 1.6 inches.

• B.

The height of the candle decreases by 9.6 inches every hour, and its original height was 20 inches.

• C.

The height of the candle decreases by 1.6 inches every hour, and its original height was 20 inches.

• D.

The height of the candle decreases by 1.6 inches every hour, and its original height was 18.4 inches.

• 7.
The table below shows the number of miles a car has been driven and the number of times the oil has been changed in the car.  Which statement best represents the meaning of the slope of the line of best fit of the data?
• A.

The car averaged 1 oil change over 10,000 miles.

• B.

The car averaged 2 oil changes over 10,000 miles.

• C.

The car averaged 3 oil changes over 20,000 miles.

• D.

The car averaged 6 oil changes over 20,000 miles.

• 8.
The line of best fit for a data set has a correlation coefficient of r = -0.94.  What does this indicate about the line of best fit?
• A.

There is a strong negative correlation.

• B.

The slope of the line is -.94.

• C.

94% of the data are on the line of best fit.

• D.

There is a strong positive correlation.

• 9.
Determine the line of best fit for the data below.
• A.

Y = 31.15x + 0.864

• B.

Y = –0.864x + 31.15

• C.

Y = - 31.15x + 0.864

• D.

Y = 0.864x + 31.15

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