## Module 3: Graded Quiz >>> Which of these statements are true Select any all that apply >>> State Estimation and Localization for Self-Driving Cars

Correct! Every quaternion corresponds to a 3×3 rotation matrix.

Correct! Any set of Euler angles represents a rotation which can also be represented by a unit quaternion.

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### 2.

Question 2

Which of these are valid rotation matrices? Select any/all that apply:

Correct! Since we are integrating noisy measurements, the error will build up over time.

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Correct! This information can be used to calculate the vehicle’s position.

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Correct! RTK uses phase of the GPS carrier signal to provide centimetre-level accuracy.