Two students determine the percentage of lead in a sample as a laboratory exercise. The actual percentage of lead in the sample is 3.51 % . The students' performed 3 trials each and obtained the following results: Student Trial 1 Trial 2 Trial 3 1 3.21 3.22 3.13 3.30 3.51 3.82 a) What is the average of the three trials performed by Student 1? Lead Content b) What is the average of the three trials performed by Student 2? Lead Content c) Which of the two students was more accurate? Student 1 Student 2 2.
Two students determine the percentage of lead in a sample as a laboratory exercise. The actual percentage of lead in the sample is 3.51 % . The students' performed 3 trials each and obtained the following results: Student Trial 1 Trial 2 Trial 3 1 3.21 3.22 3.13 3.30 3.51 3.82 a) What is the average of the three trials performed by Student 1? Lead Content b) What is the average of the three trials performed by Student 2? Lead Content c) Which of the two students was more accurate? Student 1 Student 2 2.
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
Section: Chapter Questions
Problem 3RCYU
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Question
![Two students determine the percentage of lead in a sample as a laboratory exercise. The actual percentage of lead in
the sample is 3.51 % . The students' performed 3 trials each and obtained the following results:
Student
Trial 1
Trial 2
Trial 3
1
3.21
3.22
3.13
2
3.30
3.51
3.82
a) What is the average of the three trials performed by Student 1?
Lead Content
%
b) What is the average of the three trials performed by Student 2?
Lead Content
%
c) Which of the two students was more accurate?
Student 1
O Student 2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fed56e458-0c52-43aa-9d90-5a8e9e5e35df%2F89f4802a-3954-4fb6-87f8-2ff6646185e6%2F4nakja9_processed.png&w=3840&q=75)
Transcribed Image Text:Two students determine the percentage of lead in a sample as a laboratory exercise. The actual percentage of lead in
the sample is 3.51 % . The students' performed 3 trials each and obtained the following results:
Student
Trial 1
Trial 2
Trial 3
1
3.21
3.22
3.13
2
3.30
3.51
3.82
a) What is the average of the three trials performed by Student 1?
Lead Content
%
b) What is the average of the three trials performed by Student 2?
Lead Content
%
c) Which of the two students was more accurate?
Student 1
O Student 2
![d) What is the precision of the data obtained by Student 1?
Precision
e) What is the precision of the data obtained by Student 2?
Precision
f) Which of the two students is more precise?
Student 1
Student 2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fed56e458-0c52-43aa-9d90-5a8e9e5e35df%2F89f4802a-3954-4fb6-87f8-2ff6646185e6%2Fw8y8jwm_processed.png&w=3840&q=75)
Transcribed Image Text:d) What is the precision of the data obtained by Student 1?
Precision
e) What is the precision of the data obtained by Student 2?
Precision
f) Which of the two students is more precise?
Student 1
Student 2
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