24 questions
Phil collected data from several of his friends about the number of hours they spent sleeping and the number of hours they spent playing video games on Saturday. He recorded the data in the scatterplot. Based on the scatterplot, what is the best prediction of the number of hours one of Phil's friends spends sleeping when the friend spends 1 hour playing video games?
9 hours
10 hours
7 hours
8 hours
Students in a science class investigated how the speed of changes with the air temperature outside. The data is shown in the scatterplot. Based on the scatterplot, what is the best prediction of the speed of sound when the air temperate is 50 degrees C?
350 m/s
355 m/s
360 m/s
365 m/s
The scatterplot shows the number of people in each of 8 different households and the average amount of money each household spent on groceries. Based on the scatterplot, what is the best prediction of the average amount of money spent on groceries for a household that has 7 people?
$240
$190
$210
$300
Which scatterplot suggests a linear relationship between x and y?
Ben collected data from a group of 12 people. He measured each person's resting heart rate and recorded the average number of hours each person exercised per week. He created a scatterplot to show the data he collected. Based on the scatterplot, what is the best prediction of the resting heart rate, in beats per minute, of a person who exercises an average of 8 hours per week?
30 beats per minute
50 beats per minute
55 beats per minute
60 beats per minute
The scatterplot shows the average number of hours each of 13 people spends at work every week and the average number of hours each of them spends on recreational activities every week. Based on the scatterplot, what is the best prediction of the average number of hours a person spends at work every week if that person spends an average of 10 hours on recreational activities each week?
33 h
85 h
50 h
65 h
Which scatterplot suggests a linear relationship between x and y?
The manager of a restaurant recorded how many people were in different groups of customers and how much those groups spent on food and beverages. The scatterplot below shows the data she recorded. Based on this scatterplot, about how much money would a group of 10 people be expected to spend on food and beverages at this restaurant?
$135
$115
$105
$150
Which scatterplot does NOT suggest a linear relationship between x and y?
The scatterplot shows the number hours that 12 people spent learning to type on a keyboard and each person's average typing speed. Based on the scatterplot, what is the best prediction of a person's average typing speed in words per minute (wpm) if the person has spent 70 hours learning to type?
100 wpm
55 wpm
85 wpm
70 wpm
Mrs. Collins made a scatterplot to show the relationship between the number of absences a student in her class has and the student's final exam score. Based on this scatterplot, approximately what score should a student with 6 absences expect to receive on the final exam?
65
92
67
76
The daily attendance at a bowling alley was recorded for 15 days. The scatterplot shows the number of lanes rented each day and the number of people who bowled that day. Which statement is best supported by the scatterplot?
There is a non-linear assocation between the number of lanes rented and the number of people who bowl.
There is a negative linear association between the number of lanes rented and the number of people who bowl.
There is no apparent association between the number of lanes rented and the number of people who bowl.
There is a positive linear association between the number of lanes rented and the number of people who bowl.
Julie made 25 international long-distance phone calls to London last month. The scatterplot below shows the length and cost of each phone call she made. Which conclusion is best supported by the scatterplot?
As the length of a call increases, the cost of the call increases.
As the length of a call increases, the cost of the call remains the same.
As the length of a call increases, the cost of the call descreases.
There is no relationship between the length of a call and the cost of a call.
Students recorded the total number of pages and chapters in each of several books on the scatterplot. Based on the scatterplot, which is the best prediction of the total number of pages in a book with 4 chapters?
150 pages
140 pages
90 pages
120 pages
The scatterplot shows the time spent playing a video game and the number of points scored by several students. Based on the scatterplot, which is the best prediction of the number of points scored by a student who spends 45 minutes playing the video game?
1,200
920
1,060
1,300
Which scatterplot does NOT suggest a linear relationship between x and y?
Level 1: Determine the type of correlation.
Positive
Negative
No Correlation
If a carpenter earned $1000, what is the best estimate for how many days he worked?
3
4
5
6
Which of the following would be a reasonable approximation for the length of time it would take this person to run 6 miles?
≅ 50 min
≅ 80 min
≅ 45 min
≅ 60 min