An angle is observed repeatedly using the same

equipment and procedures producing the data below:

$53{40}^{\text{'}}{00}^{\text{'}\text{'}},53{40}^{\text{'}}{10}^{\text{'}\text{'}},53{40}^{\text{'}}{10}^{\text{'}\text{'}},$ and

$53{39}^{\text{'}}{55}^{\text{'}\text{'}}$

Correct

The most probable value is the value you would quote as your estimate of the true value of the angle measure.

Part B

Calculate the standard deviation.

Express your answer in angular seconds to three significant figures.

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Part C

Calculate the standard deviation of the mean.

Express your answer in angular seconds to three significant figures.

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