Quiz about Scatterplots

Question 1

When x=6, which number is closest to the value of y on the line of best fit in the graph below?

Accepted Answer

7

Answer

1

Answer

6

Answer

9

Question 2

Which equation is closest to the line of best fit in the graph below?

Accepted Answer

y= 0.8x + 5

Answer

y= 0.9x + 3

Answer

y= 0.7x + 6

Answer

y= 13

Question 3

Which equation represents a line of best fit for this graph?

Accepted Answer

y= 2x + 2

Answer

y= x

Answer

y= 2x

Answer

y= -x - 2

Question 4

The line of best fit was calculated for the following scatter plot. Which equation best represents the line of best fit?

Accepted Answer

y= 3x

Answer

y= x/3

Answer

y= x/2

Answer

y= 2x

Question 5

Hubert has a record of his heights from first grade through seventh grade. He constructed a scatter plot and line of best fit to show his height at each grade level. Which equation is most likely to represent the line of best fit?

Accepted Answer

y= 3x +41

Answer

y= (1/41)x + (1/3)

Answer

y= 41x + 3

Answer

y= (1/3)x + 41

Question 6

The graph below shows the value of a computer given the age of the computer. Which equation would best fit the data?

Accepted Answer

y= -250x + 2000

Answer

y= 250x + 2000

Answer

y= -250x - 2000

Answer

y= 2000x - 250

Question 7

The table shows the age and value of a vehicle over several years.  Which equation would best fit the data?

Accepted Answer

y= -2000x + 22000

Answer

y= -1500x + 20000

Answer

y= 1500x + 20000

Answer

y= 2000x + 22200

Question 8

The graph shows the sales at an ice cream shop. Which statement is supported by the data in the graph?

Accepted Answer

Lower priced items have higher numbers of sales.

Answer

Higher priced items have higher numbers of sales.

Answer

Customers will not pay more than $3.50 for ice cream.

Answer

The price does not affect the number of sales of ice cream products.

Question 9

Which statement is true about the scatter plots?

Accepted Answer

Graph 1 shows a negative correlation, and Graph 2 shows a positive correlation.

Answer

Graph 1 shows a strong relationship, and Graph 2 shows a weak relationship.

Answer

Graph 2 shows a strong relationship, and Graph 1 shows a weak relationship

Answer

Graph 2 shows a negative correlation, and Graph 1 shows a positive correlation.

Question 10

Mr. Larson recorded the heights and arm spans of the students in his science class. The results are shown on the scatterplot. Using the scatterplot, which best predicts the arm span of a student who is 57 inches tall?

Accepted Answer

57

Answer

58

Answer

55

Answer

Not enough information

Question 11

The scatterplot shows the amount of time played and the number of points scored by ten basketball players during their last four games. Which conclusion best describes the data?

Accepted Answer

There is no correlation between the time played and the number of points scored.

Answer

The players who scored the most points played the longest.

Answer

There is a positive correlation between time played and the number of points scored.

Answer

There is a negative correlation between time played and the number of points scored.

Question 12

A used-car dealer kept records of the selling price of his used cars in 2005. The scatterplot shows the average selling price of his used cars based on the age of the used car. Using the graph, which is the closest to the selling price of an 8-year-old car?

Accepted Answer

$2500

Answer

$7500

Answer

$5000

Answer

$500

Question 13

Which is the best description of the data shown on this graph?

Accepted Answer

nonlinear, negative trend

Answer

nonlinear, positive trend

Answer

linear, negative trend

Answer

linear, positive trend

Question 14

The scatterplot below shows the number of parking lots, x, and the number of cars parked, y, during the week. What is the approximate value of y if x = 12?

Accepted Answer

120

Answer

100

Answer

110

Answer

140

Question 15

The graph shows the number of umbrellas sold at a certain store relative to the amount of rainfall in the town per month. Based on the line of best fit, approximately how many umbrellas would be sold if there were 6 inches of rain?

Accepted Answer

40

Answer

20

Answer

35

Answer

45

Question 16

The scatterplot below shows the relationship between the number of hours a person exercises and the time it takes to drive to work. Which conclusion does the data most strongly support?

Accepted Answer

The time it takes to drive to work is not related to the number of hours exercising.

Answer

The time it takes to drive to work decreases as the number of hours exercising increases.

Answer

The time it takes to drive to work increases as the number of hours exercising increases.

Answer

The time it takes to drive to work stays the same as the number of hours exercising increases.

Question 17

The scatterplot below suggests which of the following types of data relationship?

Accepted Answer

strong, positive

Answer

Weak, negative

Answer

weak, positive

Answer

strong, negative

Question 18

Megan has a baseball card collection containing 10 cards. She graphed the value of these 10 cards on a scatterplot as shown. Which conclusion is best supported by the data?

Accepted Answer

A baseball card generally increases in value over time.

Answer

A baseball card always increases in value over time.

Answer

If Megan bought a two-year-old baseball card, its value would be about $1.25.

Answer

If Megan bought an eight-year-old baseball card, its value would be about $5.00.

Question 19

Which situation would most likely have a negative correlation?

Accepted Answer

the amount of time a candle is burned and the height of the candle

Answer

the amount of study time and the score on a test

Answer

the amount of time a heater is on and the temperature of the room

Answer

All of the above have a negative correlation

Question 20

When graphed on a scatterplot, which set of data would most likely show a positive correlation?

Accepted Answer

amount of income earned and years of education

Answer

shoe size and weight of a person

Answer

day of the week and temperature

Answer

cost to heat a house and outside temperature

Question 21

Which situation would most likely have a scatterplot with a negative correlation?

Accepted Answer

number of questions missed on a test and test grade

Answer

age of a baby and weight of that baby

Answer

outside temperature and cooling costs

Answer

amount of air in a balloon and size of balloon

Question 22

The graph shows the amount of money earned by students after several hours of babysitting.
Which equation would best fit the data?

Accepted Answer

y= (3/2)x + 1

Answer

y= (3/2)x + 3

Answer

y= (2/3)x + 1

Answer

y= (2/3)x + 3

Question 23

The graph below shows the average price of a gallon of gas over several years. Which equation would best fit the data?

Accepted Answer

y= 1.20 + 0.10x

Answer

y= 1.20 - 0.10x

Answer

y= 0.10 - 1.20x

Answer

y= 0.10 + 1.20x

Scatterplots

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics