Using Math to Analyze Data

Question 1

Students are measuring the length of time it takes for soda to go flat at three different temperatures. Which type of graph should the students use to display their data?

Revolt · Accepted Answer

bar graph

Question 2

Which tool has the greatest degree of precision?

Revolt · Accepted Answer

a pipette with markings every 0.1 mL

Question 3

The standard deviation of Eric’s data is 0.8°C. Martha conducted the same experiment. Her average temperature was 35.1 with a standard deviation of 1.2°C. Her data are more precise than✔ less precise thanthe same precision as Eric's.

Revolt · Accepted Answer

✔ less precise than

Question 4

Students measure their heights, arm lengths, and stride lengths to determine whether there is a relationship among the values. Which type of graph should the students use to display their data?

Revolt · Accepted Answer

scatter plot

Question 5

A student is performing an experiment that requires measuring the boiling point of water. The accepted value for the boiling point of pure water is 100.0ºC. In the experiment, the student measured the boiling point to be 99.2ºC. What is the percent error in the student’s experiment?

Revolt · Accepted Answer

0.8%

Question 6

Eric carried out the same chemical reaction 10 times. The maximum temperature the reaction system attained is shown on the right. The mean maximum temperature the system attained was 35.3°C.✔ 35.6°C.36.8°C.

Revolt · Accepted Answer

✔ 35.6°C.

Question 7

Which measurements gives the precision of the balance shown above?

Revolt · Accepted Answer

135.00 g

Question 8

A group of students kept track of the number of hours of screen time (time spent watching television, using the computer, or playing video games) they had per day. The graph shows the average number of hours of screen time per day for each student.Student ABE✔ G has the smallest variation in the number of hours of screen time per day.

Revolt · Accepted Answer

✔ G

Question 9

A group of students kept track of the number of hours of screen time (time spent watching television, using the computer, or playing video games) they had per day. The graph shows the average number of hours of screen time per day for each student.Conclusion: From these data, we can conclude that Student D never has more than 9 hours of screen time in a day. The above conclusion is:

Revolt · Accepted Answer

false.

Question 10

Student CE✔ FI has the greatest variation in the number of hours of screen time per day.

Revolt · Accepted Answer

✔ F

Using Math to Analyze Data Answers

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