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015 2. Pete's three measurements are 20.9 cm, 21.0 cm, and 21.0 cm. Calculate the average value of his measurements and express the answer with the correct number of significant figures. Help?
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015

2. Pete's three measurements are 20.9 cm, 21.0 cm, and 21.0 cm. Calculate the
average value of his measurements and express the answer with the correct
number of significant figures.
Help?

User Alessandro Mariani
by
6.3k points

1 Answer

3 votes

Answer:

Average of measurements = 20.97 cm

Step-by-step explanation:

Given data:

Three measurements of pete's = 20.9 cm, 21.0 cm, 21.0 cm.

Average value of measurements = ?

Formula:

Average of measurements = sum of all measurements / Total number of measurements

Solution:

Average of measurements = 20.9 cm + 21.0 cm + 21.0 cm. / 3

Average of measurements = 62.9 cm / 3

Average of measurements = 20.97 cm

User Scharron
by
6.5k points
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