bobi
- 2
- 0
Simple average question using sig figs within ± 0.0 ?
Consider the following measurements of mileages:
23.8 mph, 20.1 mph, 26.5 mph, 20.7 mph, 21.7 mph, 27.6 mph,
30 mph, 28 mph, 27.4 mph, 34.3 mph, 26.5 mph, 32.7 mph.
What is the average mileage (using sig figs)?
Answer in units of mph Your answer must be within ± 0.0 mph.
Avg=Total Sum/number of variables
The average calculated was 26.60833333. And Since two variables have only two sig figs, I thought the answer should be 27. But it was a wrong answer.
But the last part of question asked the answer to be within ± 0.0 mph.
What does 'within ± 0.0 mph' means? No uncertainty? Or typo of 0.1 or 0.01?
What should be the correct answer?
Homework Statement
Consider the following measurements of mileages:
23.8 mph, 20.1 mph, 26.5 mph, 20.7 mph, 21.7 mph, 27.6 mph,
30 mph, 28 mph, 27.4 mph, 34.3 mph, 26.5 mph, 32.7 mph.
What is the average mileage (using sig figs)?
Answer in units of mph Your answer must be within ± 0.0 mph.
Homework Equations
Avg=Total Sum/number of variables
The Attempt at a Solution
The average calculated was 26.60833333. And Since two variables have only two sig figs, I thought the answer should be 27. But it was a wrong answer.
But the last part of question asked the answer to be within ± 0.0 mph.
What does 'within ± 0.0 mph' means? No uncertainty? Or typo of 0.1 or 0.01?
What should be the correct answer?
Last edited:
