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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?

Respuesta :

Neetoo

Answer:

Average of measurements = 20.97 cm

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

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